Climate averages 1991–2020

Citrus Heights weather
in September.

A hot, very dry month: the 4th warmest and the 3rd driest of the year.

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

Average high 30.8°C Daytime mean, September
Average low 15.3°C Night-time mean, September
Rainfall 4.2 mm fewer than one day with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Citrus Heights · average highYear overview

September is a hot month in Citrus Heights: daytime highs average 30.8°C and nights cool to about 15.3°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 4.2 mm of rain on fewer than one day, which makes September a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average September day.

The nearest other city in this atlas is Roseville (5 km away). In September its highs average 30.9°C, about as warm as Citrus Heights, with 4.2 mm of rain.

Among the 498 cities listed in the United States, Citrus Heights ranks joint 67th of 498 for the warmest September highs and joint 70th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Citrus Heights is 3.9°C warmer than that mean.

From September to October, average highs fall by 5.8°C to 25.0°C, and monthly rainfall rises from 4.2 mm to 41 mm.

The annual picture

September 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. 0510152025303540 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 1500

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

Every month, side by side

Citrus Heights climate table

1991–2020
Monthly climate averages for Citrus Heights, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 13.3°C3.9°C3.9°C14210.19.810 h
February 15.2°C5.0°C5.0°C1369.810.711 h
March 17.7°C6.7°C6.7°C1209.611.912 h
April 21.1°C8.7°C8.7°C576.413.213 h
May 26.2°C12.0°C12.0°C334.514.314 h
June 31.3°C15.2°C15.2°C6.81.214.815 h
July 33.9°C17.0°C17.0°C0.30.114.615 h
August 33.1°C16.8°C16.8°C1.10.113.714 h
September, selected 30.8°C15.3°C15.3°C4.20.812.512 h
October 25.0°C11.7°C11.7°C413.311.211 h
November 17.5°C6.8°C6.8°C776.910.110 h
December 13.0°C3.9°C3.9°C14310.49.510 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

September in nearby cities

Distance from Citrus Heights

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 Citrus Heights) is explained once on the Citrus Heights year overview and on the Sources, method and limits page.

Roseville and Folsom lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.