Compare the Climate and Weather in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal Airport

This page lets you compare and contrast the weather and climate in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal Airport year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

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Average High and Low Temperature

Compare the Average High and Low Temperature in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F6545836745664786424265NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 68°F68°F69°F72°F73°F76°F80°F82°F81°F78°F73°F68°F
McDonnell Douglas Space Systems Heliport 68°F68°F69°F72°F72°F75°F79°F81°F81°F77°F73°F68°F
Long Beach Airport 67°F67°F69°F72°F73°F76°F81°F83°F81°F77°F71°F67°F
Fullerton Municipal Airport 68°F69°F70°F73°F75°F78°F83°F85°F83°F79°F73°F68°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 46°F48°F50°F53°F58°F61°F64°F65°F63°F58°F50°F46°F
McDonnell Douglas Space Systems Heliport 46°F48°F50°F53°F57°F61°F63°F64°F62°F57°F50°F46°F
Long Beach Airport 48°F49°F52°F55°F58°F62°F65°F66°F64°F59°F52°F48°F
Fullerton Municipal Airport 47°F49°F52°F55°F59°F62°F65°F66°F64°F59°F51°F46°F

Los Alamitos

Average Hourly Temperature in Los AlamitosJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcoolcomfortablewarmcoldcold

McDonnell Douglas Space Systems Heliport

Average Hourly Temperature in McDonnell Douglas Space Systems HeliportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcomfortablewarmcomfortablecoldcold

Long Beach Airport

Average Hourly Temperature in Long Beach AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcomfortablewarmcoldcold

Fullerton Municipal Airport

Average Hourly Temperature in Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcoolcomfortablewarmcoldcold
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.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%9158NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 62%59%66%74%79%88%89%90%90%81%71%63%
McDonnell Douglas Space Systems Heliport 63%60%66%74%79%88%89%90%90%81%71%63%
Long Beach Airport 62%59%66%74%79%88%89%90%90%81%71%63%
Fullerton Municipal Airport 62%59%65%73%79%88%89%90%90%81%70%63%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%20NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 5.1d5.5d4.3d2.0d0.7d0.1d0.1d0.2d0.5d1.6d2.9d4.6d
McDonnell Douglas Space Systems Heliport 5.0d5.5d4.3d2.0d0.7d0.1d0.1d0.2d0.5d1.6d2.8d4.6d
Long Beach Airport 5.1d5.5d4.3d2.0d0.7d0.1d0.1d0.2d0.5d1.6d2.8d4.7d
Fullerton Municipal Airport 5.0d5.4d4.3d2.0d0.7d0.1d0.1d0.3d0.6d1.7d2.8d4.5d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0.0 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 in3.2NowNowLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 2.5″3.1″1.9″0.7″0.2″0.1″0.0″0.0″0.2″0.5″1.0″2.1″
McDonnell Douglas Space Systems Heliport 2.5″3.1″1.9″0.7″0.2″0.0″0.0″0.0″0.2″0.5″1.0″2.1″
Long Beach Airport 2.5″3.2″1.9″0.7″0.2″0.1″0.0″0.0″0.2″0.5″1.0″2.2″
Fullerton Municipal Airport 2.5″3.1″1.9″0.7″0.2″0.1″0.0″0.0″0.2″0.5″1.0″2.1″

Hours of Daylight

Compare the Hours of Daylight in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.49.9NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h9.9h
McDonnell Douglas Space Systems Heliport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h10.0h
Long Beach Airport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.4h12.3h11.3h10.4h9.9h
Fullerton Municipal Airport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.4h12.3h11.3h10.4h9.9h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%172612NowNowLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 0.0d0.0d0.0d0.0d0.1d0.5d3.4d5.2d3.5d0.8d0.0d0.0d
McDonnell Douglas Space Systems Heliport 0.0d0.0d0.0d0.0d0.2d1.0d5.4d7.7d5.6d1.6d0.1d0.0d
Long Beach Airport 0.0d0.0d0.0d0.0d0.1d0.3d2.2d3.3d2.3d0.5d0.0d0.0d
Fullerton Municipal Airport 0.0d0.0d0.0d0.0d0.0d0.2d1.8d2.9d2.0d0.4d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph8.15.0NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 7.87.67.27.16.45.75.25.15.25.97.07.9
McDonnell Douglas Space Systems Heliport 7.77.57.27.16.55.85.35.15.25.86.97.8
Long Beach Airport 8.07.77.37.26.55.75.25.15.36.07.18.1
Fullerton Municipal Airport 7.77.47.06.96.35.75.35.15.25.86.97.8

Average Water Temperature

Compare the Average Water Temperature in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F6959NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 59°F59°F59°F60°F62°F65°F68°F69°F68°F66°F63°F60°F
McDonnell Douglas Space Systems Heliport 59°F59°F59°F60°F62°F65°F68°F69°F68°F66°F63°F60°F
Long Beach Airport 59°F59°F59°F60°F62°F65°F67°F69°F68°F66°F63°F60°F
Fullerton Municipal Airport 59°F59°F59°F60°F62°F65°F68°F69°F68°F66°F63°F60°F

Tourism Score

Compare the Tourism Score in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.92.98.7NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.60.5NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal Airport
The percentage chance that a given day is within the growing season, defined 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).

Growing Degree Days

Compare the Growing Degree Days in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FNowNowLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh8.53.0NowNowLong Beach AirportLong Beach AirportLos AlamitosLos AlamitosFullerton Municipal AirportFullerton Municipal AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Los Alamitos 3.34.25.77.17.98.48.17.56.45.03.73.1
McDonnell Douglas Space Systems Heliport 3.34.25.77.07.98.48.17.56.35.03.73.1
Long Beach Airport 3.34.25.77.17.98.48.17.56.34.93.73.0
Fullerton Municipal Airport 3.34.25.77.17.98.48.27.56.45.03.73.1

This report illustrates the typical weather for Los Alamitos, McDonnell Douglas Space Systems Heliport, Long Beach Airport, and Fullerton Municipal Airport year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

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.

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