Climate averages 1991–2020

San Tan Valley weather
in February.

A mild, moderately wet month: the 10th warmest and the wettest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 19.8°C Daytime mean, February
Average low 6.3°C Night-time mean, February
Rainfall 41 mm 4 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in San Tan Valley · average highYear overview

February is a mild month in San Tan Valley: daytime highs average 19.8°C and nights cool to about 6.3°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 41 mm of rain on roughly 4 days, which makes February a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 59 min on an average February day.

The nearest other city in this atlas is Chandler (32 km away). In February its highs average 20.6°C, 0.8°C warmer than San Tan Valley, with 35 mm of rain.

Among the 498 cities listed in the United States, San Tan Valley ranks 51st of 498 for the warmest February highs and joint 86th of 498 for the driest February (rainfall, lowest first). The mean February high of those 498 cities is 11.1°C; San Tan Valley is 8.7°C warmer than that mean.

From February to March, average highs rise by 4.0°C to 23.8°C, and monthly rainfall falls from 41 mm to 27 mm.

The annual picture

February in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

San Tan Valley climate table

1991–2020
Monthly climate averages for San Tan Valley, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.2°C4.9°C4.9°C384.210.210 h
February, selected 19.8°C6.3°C6.3°C414.411.011 h
March 23.8°C8.9°C8.9°C273.012.012 h
April 28.2°C12.5°C12.5°C8.41.413.013 h
May 33.2°C17.4°C17.4°C4.10.713.914 h
June 38.7°C22.6°C22.6°C2.00.614.314 h
July 39.3°C26.5°C26.5°C213.714.114 h
August 38.4°C26.2°C26.2°C274.913.413 h
September 35.9°C22.7°C22.7°C263.212.412 h
October 30.0°C15.9°C15.9°C182.411.411 h
November 23.3°C9.6°C9.6°C192.410.510 h
December 17.6°C4.8°C4.8°C344.310.010 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

February in nearby cities

Distance from San Tan Valley

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Tan Valley) is explained once on the San Tan Valley year overview and on the Sources, method and limits page.