Compare the Climate and Weather in Altadena and Berrechid

This page lets you compare and contrast the weather and climate in Altadena and Berrechid year round.

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

You can compare up to four locations at the same time. Add more locations using the search box below.

Altadena
California, United States

Average High and Low Temperature

Compare the Average High and Low Temperature in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FNowNowAltadenaAltadenaBerrechidBerrechid
The daily average high and low air temperature at 2 meters above the ground.

Altadena

Average Hourly Temperature in AltadenaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoldcoldcoolcomfortablewarmhot

Berrechid

Average Hourly Temperature in BerrechidJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcomfortablewarmhotcoldvery coldcold
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 Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NowNowAltadenaAltadenaBerrechidBerrechid
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).

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NowNowAltadenaAltadenaBerrechidBerrechid
The percentage of days in which precipitation is observed, excluding trace quantities.

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0.5 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 inNowNowAltadenaAltadenaBerrechidBerrechid
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.

Hours of Daylight

Compare the Hours of Daylight in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0 hr0 hr4 hr4 hr8 hr8 hr12 hr12 hr16 hr16 hr20 hr20 hr24 hr24 hrNowNowAltadenaAltadenaBerrechidBerrechid
The number of hours during which the Sun is at least partly above the horizon.

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NowNowAltadenaAltadenaBerrechidBerrechid
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).

Average Wind Speed

Compare the Average Wind Speed in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mphNowNowAltadenaAltadenaBerrechidBerrechid
The average of mean hourly wind speeds at 10 meters above the ground.

Tourism Score

Compare the Tourism Score in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec00224466881010NowNowAltadenaAltadenaBerrechidBerrechid
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 Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec00224466881010NowNowAltadenaAltadenaBerrechidBerrechid
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 Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowAltadenaAltadenaBerrechidBerrechid
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 Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FNowNowAltadenaAltadenaBerrechidBerrechid
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 Water Temperature

Compare the Average Water Temperature in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°FNowNowAltadenaAltadenaBerrechidBerrechid
The daily average wide-area surface water temperature.

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Altadena and BerrechidJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhNowNowAltadenaAltadenaBerrechidBerrechid
The average daily shortwave solar energy reaching the ground per square meter.

Data Sources

This report illustrates the typical weather for Altadena and Berrechid, 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.

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.