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April Weather in Big Bear City California, United States

Daily high temperatures increase by 7°F, from 57°F to 64°F, rarely falling below 45°F or exceeding 75°F.

Daily low temperatures increase by 6°F, from 32°F to 38°F, rarely falling below 24°F or exceeding 45°F.

For reference, on July 25, the hottest day of the year, temperatures in Big Bear City typically range from 54°F to 82°F, while on December 24, the coldest day of the year, they range from 22°F to 43°F.

Average High and Low Temperature in April in Big Bear City

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 hourly average temperatures for the quarter of the year centered on April. The horizontal axis is the day, 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 April in Big Bear City

Average Hourly Temperature in April in Big Bear CityApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMayNowNowfreezingvery coldvery coldcoldcoldcoolcomfortable
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.

Candelario, Spain (5,677 miles away); Altınyayla, Turkey (7,068 miles); and Gümüşhacıköy, Turkey (6,957 miles) are the far-away foreign places with temperatures most similar to Big Bear City (view comparison).

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The month of April in Big Bear City experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 31% to 26%.

The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 74% of the time.

For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on September 6, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.

Cloud Cover Categories in April in Big Bear City

Cloud Cover Categories in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 169%Apr 169%Apr 3074%Apr 3074%Apr 1171%Apr 1171%Apr 2172%Apr 2172%NowNowclearmostly clearpartly cloudyovercastmostly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Big Bear City, the chance of a wet day over the course of April is gradually decreasing, starting the month at 7% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 15% on February 21, and its lowest chance is 1% on June 13.

Over the course of April in Big Bear City, the chance of a day with only rain remains an essentially constant 3% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in April in Big Bear City

Probability of Precipitation in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%MarMayApr 17%Apr 17%Apr 303%Apr 303%Apr 115%Apr 115%Apr 214%Apr 214%NowNowsnowmixedrain
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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during April in Big Bear City is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.7 inches or falling below -0.0 inches.

Average Monthly Rainfall in April in Big Bear City

Average Monthly Rainfall in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inMarMayApr 10.3 inApr 10.3 inApr 300.1 inApr 300.1 inApr 110.2 inApr 110.2 inApr 210.2 inApr 210.2 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.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during April in Big Bear City is gradually decreasing, starting the month at 1.1 inches, when it rarely exceeds 3.2 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches.

Average Monthly Snowfall in April in Big Bear City

The average 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.

Over the course of April in Big Bear City, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 58 minutes, implying an average daily increase of 2 minutes, 0 seconds, and weekly increase of 14 minutes, 1 second.

The shortest day of the month is April 1, with 12 hours, 35 minutes of daylight and the longest day is April 30, with 13 hours, 33 minutes of daylight.

Hours of Daylight and Twilight in April in Big Bear City

Hours of Daylight and Twilight in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 35 minApr 112 hr, 35 minApr 3013 hr, 33 minApr 3013 hr, 33 minApr 1613 hr, 6 minApr 1613 hr, 6 minNowNow
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 latest sunrise of the month in Big Bear City is 6:33 AM on April 1 and the earliest sunrise is 36 minutes earlier at 5:58 AM on April 30.

The earliest sunset is 7:08 PM on April 1 and the latest sunset is 23 minutes later at 7:31 PM on April 30.

Daylight saving time is observed in Big Bear City during 2024, but it neither starts nor ends during April, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:35 AM and sets 14 hours, 27 minutes later, at 8:02 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 9 hours, 52 minutes later, at 4:41 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April in Big Bear City

Sunrise & Sunset with Twilight and Daylight Saving Time in April in Big Bear CityApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay5:58 AM5:58 AMApr 307:31 PMApr 307:31 PM6:33 AM6:33 AMApr 17:08 PMApr 17:08 PM6:20 AM6:20 AMApr 117:16 PMApr 117:16 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of April. 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 April in Big Bear City

Solar Elevation and Azimuth in April in Big Bear CityApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay0010102020203030404050506060700001010202030303040405050606070NowNow
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in April in Big Bear City

Moon Rise, Set & Phases in April in Big Bear CityApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 101:01 AMMar 101:01 AMMar 2512:01 AMMar 2512:01 AMApr 811:22 AMApr 811:22 AMApr 234:50 PMApr 234:50 PMMay 78:23 PMMay 78:23 PMMay 236:54 AMMay 236:54 AM7:24 AM7:24 AM7:36 PM7:36 PM6:46 PM6:46 PM6:58 AM6:58 AM6:20 AM6:20 AM7:33 PM7:33 PM7:30 PM7:30 PM6:18 AM6:18 AM5:21 AM5:21 AM7:35 PM7:35 PM7:23 PM7:23 PM5:26 AM5:26 AM
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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%1:45 AMSE11:13 AMSW-6:29 AMS237,463 mi
2
45%2:40 AMSE12:19 PMWSW-7:30 AMS234,093 mi
3
34%3:29 AMESE1:29 PMWSW-8:29 AMS230,734 mi
4
23%4:10 AMESE2:42 PMWSW-9:26 AMS227,653 mi
5
13%4:47 AMESE3:56 PMWSW-10:21 AMS225,152 mi
6
6%5:19 AME5:08 PMW-11:13 AMS223,519 mi
7
1%5:50 AME6:21 PMW-12:03 PMS222,981 mi
8
0%6:20 AME7:33 PMWNW-12:54 PMS223,652 mi
9
2%6:52 AMENE8:47 PMWNW-1:46 PMS225,501 mi
10
7%7:27 AMENE10:01 PMWNW-2:40 PMS228,357 mi
11
14%8:08 AMENE11:12 PMWNW-3:37 PMS231,934 mi
12
23%8:55 AMENE--4:35 PMS235,884 mi
13
32%-12:19 AMNW9:48 AMNE5:33 PMS239,852 mi
14
43%-1:17 AMNW10:47 AMNE6:29 PMS243,525 mi
15
50%-2:07 AMWNW11:48 AMENE7:21 PMS246,668 mi
16
63%-2:48 AMWNW12:50 PMENE8:09 PMS249,129 mi
17
72%-3:22 AMWNW1:49 PMENE8:53 PMS250,837 mi
18
80%-3:50 AMWNW2:47 PMENE9:34 PMS251,789 mi
19
87%-4:16 AMWNW3:44 PME10:14 PMS252,038 mi
20
93%-4:40 AMW4:39 PME10:52 PMS251,666 mi
21
97%-5:02 AMW5:35 PME11:31 PMS250,777 mi
22
99%-5:25 AMW6:31 PMESE--
23
100%-5:50 AMWSW7:30 PMESE12:11 AMS249,476 mi
24
100%-6:18 AMWSW8:31 PMESE12:54 AMS247,855 mi
25
98%-6:49 AMWSW9:34 PMESE1:40 AMS245,989 mi
26
94%-7:27 AMWSW10:37 PMESE2:30 AMS243,929 mi
27
88%-8:13 AMSW11:39 PMSE3:25 AMS241,708 mi
28
81%-9:08 AMSW-4:23 AMS239,349 mi
29
71%12:36 AMSE10:10 AMSW-5:23 AMS236,882 mi
30
60%1:26 AMESE11:18 AMWSW-6:22 AMS234,362 mi

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.

The chance that a given day will be muggy in Big Bear City is essentially constant during April, remaining around 0% throughout.

For reference, on August 14, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April in Big Bear City

Humidity Comfort Levels in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 160%Apr 160%Apr 10%Apr 10%Apr 300%Apr 300%NowNowdrydry
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.

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 Big Bear City is essentially constant during April, remaining within 0.2 miles per hour of 8.7 miles per hour throughout.

For reference, on April 25, the windiest day of the year, the daily average wind speed is 8.9 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

The highest daily average wind speed during April is 8.9 miles per hour on April 25.

Average Wind Speed in April in Big Bear City

Average Wind Speed in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphMarMayApr 258.9 mphApr 258.9 mphApr 18.5 mphApr 18.5 mphApr 118.8 mphApr 118.8 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Big Bear City throughout April is predominantly from the west, with a peak proportion of 68% on April 30.

Wind Direction in April in Big Bear City

Wind Direction in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMayNowNowwestnorthsoutheast
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).

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 Big Bear City typically lasts for 5.2 months (160 days), from around May 11 to around October 18, rarely starting before April 16 or after June 6, and rarely ending before September 28 or after November 7.

The month of April in Big Bear City is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 2% to 29% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in April in Big Bear City

Time Spent in Various Temperature Bands and the Growing Season in April in Big Bear Citygrowing seasonApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 12%Apr 12%Apr 3029%Apr 3029%Apr 116%Apr 116%Apr 2115%Apr 2115%50%May 1150%May 11NowNowfreezingvery coldcoldcoolcomfortablewarm
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.

The average accumulated growing degree days in Big Bear City are gradually increasing during April, increasing by 92°F, from 60°F to 152°F, over the course of the month.

Growing Degree Days in April in Big Bear City

The average growing degree days accumulated over the course of April, 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 in Big Bear City is increasing during April, rising by 1.1 kWh, from 6.8 kWh to 7.9 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April in Big Bear City

Average Daily Incident Shortwave Solar Energy in April in Big Bear CityApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMarMayApr 16.8 kWhApr 16.8 kWhApr 307.9 kWhApr 307.9 kWhApr 117.2 kWhApr 117.2 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.

For the purposes of this report, the geographical coordinates of Big Bear City are 34.261 deg latitude, -116.845 deg longitude, and 6,781 ft elevation.

The topography within 2 miles of Big Bear City contains very significant variations in elevation, with a maximum elevation change of 1,473 feet and an average elevation above sea level of 6,995 feet. Within 10 miles contains very significant variations in elevation (7,493 feet). Within 50 miles also contains extreme variations in elevation (11,483 feet).

The area within 2 miles of Big Bear City is covered by shrubs (60%) and trees (37%), within 10 miles by shrubs (51%) and trees (47%), and within 50 miles by shrubs (81%).

This report illustrates the typical weather in Big Bear City, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Big Bear City.

For each station, the records are corrected for the elevation difference between that station and Big Bear City 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 Big Bear City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Big Bear City and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Big Bear City and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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.

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