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Climate and Average Weather Year Round in Dalu China

In Dalu, the summers are hot, oppressive, wet, and mostly cloudy and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 30°F to 90°F and is rarely below 22°F or above 98°F.

Based on the tourism score, the best times of year to visit Dalu for warm-weather activities are from late May to early June and from early September to mid October.

Climate in Dalu

very coldcoldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow70%70%29%29%clearovercastprecipitation: 7.9 inprecipitation: 7.9 in0.9 in0.9 inmuggy: 99%muggy: 99%0%0%drydrytourism score: 7.2tourism score: 7.20.00.0
Dalu weather by month. Click on each chart for more information.

The hot season lasts for 3.5 months, from May 27 to September 13, with an average daily high temperature above 81°F. The hottest month of the year in Dalu is July, with an average high of 88°F and low of 77°F.

The cold season lasts for 3.1 months, from December 2 to March 4, with an average daily high temperature below 52°F. The coldest month of the year in Dalu is January, with an average low of 30°F and high of 44°F.

Average High and Low Temperature in Dalu

Average High and Low Temperature in DaluhotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FJan 2043°FJan 2043°FJul 2990°FJul 2990°F30°F30°F78°F78°FMay 2781°FMay 2781°FSep 1381°FSep 1381°FDec 252°FDec 252°FMar 452°FMar 452°F64°F64°F68°F68°F37°F37°F38°F38°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 44°F47°F56°F68°F78°F84°F88°F87°F80°F71°F59°F48°F
Temp. 36°F40°F48°F59°F69°F76°F82°F81°F73°F63°F51°F40°F
Low 30°F34°F42°F52°F62°F70°F77°F75°F67°F56°F44°F33°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Dalu

Average Hourly Temperature in DaluJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolwarmhotvery coldcomfortablefreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Baltimore, Maryland, United States (7,394 miles away) is the far-away foreign place with temperatures most similar to Dalu (view comparison).

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In Dalu, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Dalu begins around August 17 and lasts for 6.4 months, ending around February 29.

The clearest month of the year in Dalu is November, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around February 29 and lasts for 5.6 months, ending around August 17.

The cloudiest month of the year in Dalu is July, during which on average the sky is overcast or mostly cloudy 66% of the time.

Cloud Cover Categories in Dalu

Cloud Cover Categories in DaluclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2270%Oct 2270%Jul 429%Jul 429%Aug 1749%Aug 1749%Feb 2949%Feb 2949%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 39%46%54%54%52%61%66%51%40%32%32%32%
Clearer 61%54%46%46%48%39%34%49%60%68%68%68%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Dalu varies significantly throughout the year.

The wetter season lasts 2.9 months, from June 7 to September 4, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Dalu is July, with an average of 12.5 days with at least 0.04 inches of precipitation.

The drier season lasts 9.1 months, from September 4 to June 7. The month with the fewest wet days in Dalu is December, with an average of 3.4 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Dalu is July, with an average of 12.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 47% on July 4.

Daily Chance of Precipitation in Dalu

Daily Chance of Precipitation in DaluwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 447%Jul 447%Dec 1710%Dec 1710%Jun 728%Jun 728%Sep 428%Sep 428%NowNowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 3.7d5.2d7.6d7.3d7.4d10.7d12.5d10.3d6.9d5.1d4.7d3.4d
Mixed 0.4d0.6d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d
Snow 0.1d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d
Any 4.3d5.9d7.9d7.3d7.4d10.7d12.5d10.3d6.9d5.1d4.8d3.4d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Dalu experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Dalu. The month with the most rain in Dalu is July, with an average rainfall of 6.7 inches.

The month with the least rain in Dalu is December, with an average rainfall of 0.9 inches.

Average Monthly Rainfall in Dalu

Average Monthly Rainfall in DaluJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 inJul 27.9 inJul 27.9 inDec 230.9 inDec 230.9 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 1.1″1.6″2.4″2.5″2.9″6.2″6.7″4.4″3.1″1.9″1.6″0.9″

The length of the day in Dalu varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 2 minutes of daylight; the longest day is June 21, with 14 hours, 16 minutes of daylight.

Hours of Daylight and Twilight in Dalu

Hours of Daylight and Twilight in DaluJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 16 minJun 2114 hr, 16 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 2 minDec 2110 hr, 2 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.3h11.0h12.0h13.0h13.8h14.2h14.0h13.3h12.4h11.4h10.5h10.1h

The earliest sunrise is at 4:53 AM on June 12, and the latest sunrise is 2 hours, 9 minutes later at 7:02 AM on January 10. The earliest sunset is at 4:55 PM on December 3, and the latest sunset is 2 hours, 16 minutes later at 7:11 PM on June 29.

Daylight saving time (DST) is not observed in Dalu during 2024.

Sunrise & Sunset with Twilight in Dalu

Sunrise & Sunset with Twilight in DaluJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 124:53 AMJun 124:53 AM7:11 PMJun 297:11 PMJun 29Dec 34:55 PMDec 34:55 PM7:02 AMJan 107:02 AMJan 10daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Dalu

Solar Elevation and Azimuth in DaluJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101010202020203030303040404050505060607080000010101010202020203030303040404050506060707034NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Dalu

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Dalu experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.1 months, from May 25 to September 29, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Dalu is July, with 30.1 days that are muggy or worse.

The least muggy day of the year is February 6, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Dalu

Humidity Comfort Levels in DalumuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 60%Feb 60%99%Jul 2499%Jul 24May 2525%May 2525%Sep 2925%Sep 2925%NowNowmiserablemiserableoppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.9d5.6d19.1d30.1d29.3d15.7d2.8d0.2d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Dalu experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.9 months, from February 11 to June 8, with average wind speeds of more than 8.7 miles per hour. The windiest month of the year in Dalu is April, with an average hourly wind speed of 9.3 miles per hour.

The calmer time of year lasts for 8.1 months, from June 8 to February 11. The calmest month of the year in Dalu is October, with an average hourly wind speed of 8.0 miles per hour.

Average Wind Speed in Dalu

Average Wind Speed in DaluwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphMay 19.5 mphMay 19.5 mphAug 257.9 mphAug 257.9 mphFeb 118.7 mphFeb 118.7 mphJun 88.7 mphJun 88.7 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 8.48.89.39.39.28.58.18.08.18.08.48.4

The predominant average hourly wind direction in Dalu varies throughout the year.

The wind is most often from the east for 1.8 months, from February 18 to April 13; for 1.5 months, from May 14 to June 29; and for 2.9 months, from July 29 to October 26, with a peak percentage of 49% on September 12. The wind is most often from the south for 1.0 months, from April 13 to May 14 and for 1.0 months, from June 29 to July 29, with a peak percentage of 42% on July 14. The wind is most often from the north for 3.7 months, from October 26 to February 18, with a peak percentage of 43% on January 1.

Wind Direction in Dalu

Wind Direction in DaluNESESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

To characterize how pleasant the weather is in Dalu throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Dalu for general outdoor tourist activities are from late May to early June and from early September to mid October, with a peak score in the last week of September.

Tourism Score in Dalu

Tourism Score in DaluJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.27.20.00.06.56.53.83.8NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Dalu for hot-weather activities is from early August to early September, with a peak score in the last week of August.

Beach/Pool Score in Dalu

Beach/Pool Score in DaluJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.16.10.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Dalu typically lasts for 8.4 months (258 days), from around March 9 to around November 22, rarely starting before February 21 or after March 27, and rarely ending before November 4 or after December 10.

Time Spent in Various Temperature Bands and the Growing Season in Dalu

Time Spent in Various Temperature Bands and the Growing Season in Dalugrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 950%Mar 950%Nov 2250%Nov 2290%Mar 2790%Mar 2790%Nov 490%Nov 410%Feb 2110%Feb 2110%Dec 1010%Dec 100%Jan 180%Jan 18Jul 18100%Jul 18100%very coldcoldcoolwarmhotfreezingcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Dalu should appear around March 24, only rarely appearing before March 11 or after April 6.

Growing Degree Days in Dalu

Growing Degree Days in DaluJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 2481°FMar 2481°FMay 26900°FMay 26900°FJul 11,800°FJul 11,800°FDec 314,900°FDec 314,900°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.2 months, from April 18 to June 23, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year in Dalu is May, with an average of 5.9 kWh.

The darker period of the year lasts for 3.0 months, from November 6 to February 8, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Dalu is December, with an average of 2.8 kWh.

Average Daily Incident Shortwave Solar Energy in Dalu

Average Daily Incident Shortwave Solar Energy in DalubrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMay 316.1 kWhMay 316.1 kWhDec 282.8 kWhDec 282.8 kWhApr 185.4 kWhApr 185.4 kWhNov 63.4 kWhNov 63.4 kWhFeb 83.4 kWhFeb 83.4 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 3.03.64.35.35.95.75.25.45.04.13.22.8

For the purposes of this report, the geographical coordinates of Dalu are 32.215 deg latitude, 119.732 deg longitude, and 20 ft elevation.

The topography within 2 miles of Dalu contains significant variations in elevation, with a maximum elevation change of 755 feet and an average elevation above sea level of 40 feet. Within 10 miles also contains significant variations in elevation (791 feet). Within 50 miles contains significant variations in elevation (1,545 feet).

The area within 2 miles of Dalu is covered by cropland (51%), water (20%), and artificial surfaces (17%), within 10 miles by cropland (52%) and water (24%), and within 50 miles by cropland (67%) and artificial surfaces (16%).

This report illustrates the typical weather in Dalu, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Nanjing Dajiaochang Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Dalu.

At a distance of 98 kilometers from Dalu, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Dalu according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.