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Average Weather in Belford New Jersey, United States

In Belford, the summers are warm and humid, the winters are very cold and windy, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 28°F to 84°F and is rarely below 15°F or above 92°F.

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

Climate Summary

very coldcoldcoolwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow64%64%47%47%clearovercastprecipitation: 3.8 inprecipitation: 3.8 in2.9 in2.9 inmuggy: 55%muggy: 55%0%0%drydrytourism score: 6.9tourism score: 6.90.20.2
Click on each chart for more information.

Temperature

The warm season lasts for 3.5 months, from June 2 to September 16, with an average daily high temperature above 76°F. The hottest day of the year is July 20, with an average high of 84°F and low of 70°F.

The cold season lasts for 3.3 months, from December 3 to March 12, with an average daily high temperature below 49°F. The coldest day of the year is January 30, with an average low of 28°F and high of 40°F.

Average High and Low Temperature

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.

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

Average Hourly Temperature in BelfordJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMNowNowfreezingvery coldcoldcoldcoolcoolcomfortablewarmvery cold
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.

Gedzhukh, Russia (5,690 miles away) and Niimi, Japan (6,947 miles) are the far-away foreign places with temperatures most similar to Belford (view comparison).

Clouds

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

The clearer part of the year in Belford begins around June 24 and lasts for 4.6 months, ending around November 12. On August 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.

The cloudier part of the year begins around November 12 and lasts for 7.4 months, ending around June 24. On January 3, the cloudiest day of the year, the sky is overcast or mostly cloudy 53% of the time, and clear, mostly clear, or partly cloudy 47% of the time.

Cloud Cover Categories

Cloud Cover Categories in BelfordclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2864%Aug 2864%Jan 347%Jan 347%Jun 2455%Jun 2455%Nov 1256%Nov 1256%NowNowclearmostly clearmostly cloudyovercastpartly cloudy
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.

Precipitation

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

The wetter season lasts 4.9 months, from March 25 to August 22, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 35% on July 31.

The drier season lasts 7.1 months, from August 22 to March 25. The smallest chance of a wet day is 22% on January 29.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 35% on July 31.

Daily Chance of Precipitation

Daily Chance of Precipitation in BelfordwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 3135%Jul 3135%Jan 2922%Jan 2922%Mar 2529%Mar 2529%NowNowrainsnow
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).

Rainfall

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. Belford experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Belford. The most rain falls during the 31 days centered around July 30, with an average total accumulation of 3.8 inches.

The least rain falls around February 7, with an average total accumulation of 2.4 inches.

Average Monthly Rainfall

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 liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Belford experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 3.9 months, from November 28 to March 26, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 23, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 8.1 months, from March 26 to November 28. The least snow falls around July 24, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

The average liquid-equivalent snowfall (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 rainfall.

Sun

The length of the day in Belford varies significantly over the course of the year. In 2020, the shortest day is December 21, with 9 hours, 17 minutes of daylight; the longest day is June 20, with 15 hours, 4 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in BelfordJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1915 hr, 4 minJun 2015 hr, 4 minJun 2012 hr, 11 minSep 2212 hr, 11 minSep 229 hr, 17 minDec 219 hr, 17 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.

The earliest sunrise is at 5:25 AM on June 13, and the latest sunrise is 2 hours, 0 minutes later at 7:25 AM on October 31. The earliest sunset is at 4:29 PM on December 7, and the latest sunset is 4 hours, 1 minute later at 8:30 PM on June 26.

Daylight saving time (DST) is observed in Belford during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in BelfordJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:25 AMJun 135:25 AM8:30 PMJun 268:30 PMJun 26Dec 74:29 PMDec 74:29 PM7:25 AMOct 317:25 AMOct 31Mar 8DSTMar 8DSTDSTNov 1DSTNov 1daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2020. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

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.

Belford experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.7 months, from June 4 to September 26, during which time the comfort level is muggy, oppressive, or miserable at least 14% of the time. The muggiest day of the year is August 1, with muggy conditions 55% of the time.

The least muggy day of the year is December 13, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in BelfordmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 130%Dec 130%Aug 155%Aug 155%Jun 414%Jun 414%Sep 2614%Sep 2614%NowNowoppressiveoppressivemuggymuggydrydrycomfortablecomfortable
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.

Wind

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 Belford experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.4 months, from October 9 to April 23, with average wind speeds of more than 9.4 miles per hour. The windiest day of the year is January 30, with an average hourly wind speed of 11.7 miles per hour.

The calmer time of year lasts for 5.6 months, from April 23 to October 9. The calmest day of the year is July 25, with an average hourly wind speed of 7.2 miles per hour.

Average Wind Speed

Average Wind Speed in BelfordwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mphJan 3011.7 mphJan 3011.7 mphJul 257.2 mphJul 257.2 mphOct 99.4 mphOct 99.4 mphApr 239.4 mphApr 239.4 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the south for 4.6 months, from May 10 to September 28, with a peak percentage of 39% on August 1. The wind is most often from the west for 7.4 months, from September 28 to May 10, with a peak percentage of 45% on January 1.

Wind Direction

Wind Direction in BelfordWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
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).

Water Temperature

Belford is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 22 to September 30, with an average temperature above 67°F. The day of the year with the warmest water is August 6, with an average temperature of 73°F.

The time of year with cooler water lasts for 3.7 months, from December 26 to April 17, with an average temperature below 46°F. The day of the year with the coolest water is February 23, with an average temperature of 40°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in Belford 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 Belford for general outdoor tourist activities are from early June to mid July and from late July to late September, with a peak score in the first week of September.

Tourism Score

Tourism Score in Belfordbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.96.90.20.26.56.56.26.2NowNow precipitationprecipitationcloudscloudstemperaturetemperaturetourism 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 Belford for hot-weather activities is from late June to late August, with a peak score in the third week of July.

Beach/Pool Score

Beach/Pool Score in Belfordbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.46.40.00.0NowNow precipitationprecipitationcloudscloudstemperaturetemperaturebeach/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.

Growing Season

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 Belford typically lasts for 7.6 months (232 days), from around March 29 to around November 16, rarely starting before March 13 or after April 14, and rarely ending before October 30 or after December 4.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Belfordgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 2950%Mar 2950%Nov 1650%Nov 1690%Apr 1490%Apr 1490%Oct 3090%Oct 3010%Mar 1310%Mar 1310%Dec 410%Dec 40%Jan 310%Jan 31Jul 22100%Jul 22100%freezingvery coldcomfortablewarmcoldcoolhot
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 Belford should appear around April 7, only rarely appearing before March 21 or after April 21.

Growing Degree Days

Growing Degree Days in BelfordJanFebMarAprMayJunJulAugSepOctNovDec0°F500°F1,000°F1,500°F2,000°F2,500°F3,000°F3,500°F4,000°FApr 783°FApr 783°FJun 17900°FJun 17900°FJul 231,800°FJul 231,800°FDec 313,733°FDec 313,733°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.8 months, from April 27 to August 21, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is June 27, with an average of 6.9 kWh.

The darker period of the year lasts for 3.2 months, from November 5 to February 10, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 22, with an average of 1.8 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in BelfordbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJun 276.9 kWhJun 276.9 kWhDec 221.8 kWhDec 221.8 kWhApr 275.8 kWhApr 275.8 kWhAug 215.8 kWhAug 215.8 kWhFeb 102.8 kWhFeb 102.8 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.

Topography

For the purposes of this report, the geographical coordinates of Belford are 40.426 deg latitude, -74.087 deg longitude, and 10 ft elevation.

The topography within 2 miles of Belford contains only modest variations in elevation, with a maximum elevation change of 171 feet and an average elevation above sea level of 18 feet. Within 10 miles also contains only modest variations in elevation (384 feet). Within 50 miles contains only modest variations in elevation (1,381 feet).

The area within 2 miles of Belford is covered by artificial surfaces (56%), water (30%), and trees (13%), within 10 miles by water (51%) and artificial surfaces (32%), and within 50 miles by water (38%) and artificial surfaces (32%).

Data Sources

This report illustrates the typical weather in Belford, 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 are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Belford.

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

The estimated value at Belford is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Belford and a given station.

The stations contributing to this reconstruction are: Linden Airport (37%, 25 kilometers, northwest); Monmouth Executive Airport (33%, 27 kilometers, south); John F. Kennedy International Airport (22%, 36 kilometers, northeast); and Trenton Mercer Airport (9%, 64 kilometers, west).

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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.