Compare the Climate and Weather in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina Airport

This page lets you compare and contrast the weather and climate in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina 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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F6648796581644582676752644542NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 66°F66°F67°F69°F70°F73°F77°F78°F78°F75°F70°F66°F
John Wayne Airport-Orange County 67°F67°F68°F70°F72°F74°F78°F80°F79°F76°F71°F66°F
McDonnell Douglas Space Systems Heliport 68°F68°F69°F72°F72°F75°F79°F81°F81°F77°F73°F68°F
Catalina Airport 65°F64°F65°F67°F69°F73°F78°F80°F79°F75°F69°F65°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 48°F50°F52°F55°F59°F62°F65°F66°F64°F60°F53°F48°F
John Wayne Airport-Orange County 48°F50°F52°F55°F59°F62°F65°F66°F65°F60°F53°F48°F
McDonnell Douglas Space Systems Heliport 46°F48°F50°F53°F57°F61°F63°F64°F62°F57°F50°F46°F
Catalina Airport 54°F53°F52°F54°F56°F59°F64°F66°F66°F61°F57°F53°F

Costa Mesa

Average Hourly Temperature in Costa MesaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolcomfortablewarmcoldcold

John Wayne Airport-Orange County

Average Hourly Temperature in John Wayne Airport-Orange CountyJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcomfortablewarmcoldcold

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 AMNowNowcoldcoldcoolcoolcoolcomfortablewarmcomfortablecoldcold

Catalina Airport

Average Hourly Temperature in Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoolcoolcomfortablewarmcold
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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%9158NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
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
Costa Mesa 63%60%66%74%79%88%89%90%90%81%71%63%
John Wayne Airport-Orange County 63%60%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%
Catalina Airport 63%60%66%73%77%86%89%90%90%81%70%63%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%20NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 5.0d5.4d4.3d2.0d0.7d0.1d0.2d0.2d0.5d1.5d2.8d4.6d
John Wayne Airport-Orange County 4.9d5.4d4.3d2.1d0.7d0.2d0.2d0.2d0.5d1.6d2.8d4.5d
McDonnell Douglas Space Systems Heliport 5.0d5.5d4.3d2.0d0.7d0.1d0.1d0.2d0.5d1.6d2.8d4.6d
Catalina Airport 5.0d5.4d4.2d1.8d0.7d0.1d0.1d0.1d0.5d1.3d2.7d4.7d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina 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 in3.0NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 2.4″3.0″1.8″0.6″0.2″0.0″0.0″0.0″0.2″0.4″0.9″2.0″
John Wayne Airport-Orange County 2.4″3.0″1.8″0.7″0.2″0.0″0.0″0.0″0.2″0.4″0.9″2.0″
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″
Catalina Airport 2.3″2.9″1.7″0.6″0.2″0.1″0.0″0.0″0.1″0.4″0.9″2.0″

Hours of Daylight

Compare the Hours of Daylight in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.49.9NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h10.0h
John Wayne Airport-Orange County 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h10.0h
McDonnell Douglas Space Systems Heliport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h10.0h
Catalina Airport 10.2h11.0h12.0h13.0h13.9h14.3h14.1h13.3h12.3h11.3h10.4h10.0h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2113263NowNowJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 0.0d0.0d0.0d0.0d0.1d0.6d4.0d6.2d4.2d1.0d0.0d0.0d
John Wayne Airport-Orange County 0.0d0.0d0.0d0.0d0.0d0.3d2.4d3.7d2.6d0.5d0.0d0.0d
McDonnell Douglas Space Systems Heliport 0.0d0.0d0.0d0.0d0.2d1.0d5.4d7.7d5.6d1.6d0.1d0.0d
Catalina Airport 0.0d0.0d0.0d0.0d0.0d0.0d0.4d0.7d0.7d0.2d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph7.75.25.29.76.7NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 7.47.47.27.16.65.95.45.35.35.86.77.5
John Wayne Airport-Orange County 7.37.27.07.06.55.85.45.25.25.76.67.4
McDonnell Douglas Space Systems Heliport 7.77.57.27.16.55.85.35.15.25.86.97.8
Catalina Airport 8.89.19.49.58.87.56.86.97.27.58.39.0

Average Water Temperature

Compare the Average Water Temperature in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F695969NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 59°F59°F59°F60°F62°F65°F68°F69°F69°F66°F63°F60°F
John Wayne Airport-Orange County 59°F59°F59°F60°F62°F65°F68°F69°F69°F67°F63°F60°F
McDonnell Douglas Space Systems Heliport 59°F59°F59°F60°F62°F65°F68°F69°F68°F66°F63°F60°F
Catalina Airport 59°F59°F59°F60°F62°F64°F67°F68°F68°F66°F63°F60°F

Tourism Score

Compare the Tourism Score in Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810109.03.38.64.4NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.70.4NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems Heliport
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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FNowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
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 Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh8.43.0NowNowCosta MesaCosta MesaCatalina AirportCatalina AirportMcDonnell Douglas Space Systems HeliportMcDonnell Douglas Space Systems HeliportJohn Wayne Airport-Orange CountyJohn Wayne Airport-Orange County
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Costa Mesa 3.34.25.77.07.98.38.17.46.34.93.73.1
John Wayne Airport-Orange County 3.34.25.77.07.98.48.17.46.35.03.73.1
McDonnell Douglas Space Systems Heliport 3.34.25.77.07.98.48.17.56.35.03.73.1
Catalina Airport 3.34.25.67.07.78.28.07.46.34.93.73.1

This report illustrates the typical weather for Costa Mesa, John Wayne Airport-Orange County, McDonnell Douglas Space Systems Heliport, and Catalina 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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