Climate averages 1991–2020

Visalia weather
in August.

A very hot, very dry month: the 2nd warmest and the driest of the year.

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

Average high 36.2°C Daytime mean, August

Average low 21.2°C Night-time mean, August

Rainfall <1 mm Almost no rain

Daylight 14 h Sunrise to sunset, per day

August is a very hot month in Visalia: daytime highs average 36.2°C and nights cool to about 21.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 32 min on an average August day.

The nearest other city in this atlas is Fresno (63 km away). In August its highs average 35.9°C, about as warm as Visalia, with almost no rain (under 1 mm).

Among the 498 cities listed in the United States, Visalia ranks 19th of 498 for the warmest August highs and joint 26th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Visalia is 6.2°C warmer than that mean.

From August to September, average highs fall by 3.4°C to 32.8°C, and monthly rainfall rises from under 1 mm to 1.7 mm.

The annual picture

August in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Visalia climate table

1991–2020

Monthly climate averages for Visalia, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	14.3°C4.6°C	4.6°C	92	8.0	10.010 h
February	15.9°C5.8°C	5.8°C	89	9.8	10.811 h
March	18.6°C7.8°C	7.8°C	87	9.2	11.912 h
April	21.8°C9.8°C	9.8°C	44	5.9	13.113 h
May	27.1°C13.7°C	13.7°C	23	3.4	14.114 h
June	32.6°C17.9°C	17.9°C	6.6	1.0	14.615 h
July	36.5°C21.6°C	21.6°C	1.7	0.5	14.414 h
August, selected	36.2°C21.2°C	21.2°C	0.6	0.2	13.514 h
September	32.8°C18.5°C	18.5°C	1.7	0.4	12.412 h
October	26.0°C13.5°C	13.5°C	24	2.7	11.311 h
November	18.6°C8.0°C	8.0°C	44	5.5	10.310 h
December	13.9°C4.5°C	4.5°C	74	7.5	9.710 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

August in nearby cities

Distance from Visalia

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