Climate averages 1991–2020

Manteca weather
in July.

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

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

Average high 33.4°C Daytime mean, July

Average low 16.6°C Night-time mean, July

Rainfall <1 mm Almost no rain

Daylight 15 h Sunrise to sunset, per day

July is a hot month in Manteca: daytime highs average 33.4°C and nights cool to about 16.6°C. By daytime temperature it is the warmest month of the year.

Rain is very rare: less than 1 mm falls in a typical July (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 30 min on an average July day.

The nearest other city in this atlas is Stockton (19 km away). In July its highs average 32.8°C, 0.6°C cooler than Manteca, with almost no rain (under 1 mm).

Among the 498 cities listed in the United States, Manteca ranks 87th of 498 for the warmest July highs and 1st of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Manteca is 3.1°C warmer than that mean.

From July to August, average highs fall by 0.8°C to 32.6°C, and monthly rainfall rises from under 1 mm to 1.2 mm.

The annual picture

July 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

Manteca climate table

1991–2020

Monthly climate averages for Manteca, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	13.8°C4.7°C	4.7°C	84	8.6	9.910 h
February	15.5°C5.8°C	5.8°C	78	8.6	10.811 h
March	18.3°C7.4°C	7.4°C	65	8.2	11.912 h
April	21.4°C9.2°C	9.2°C	34	4.8	13.113 h
May	26.3°C12.3°C	12.3°C	18	3.0	14.214 h
June	30.9°C15.0°C	15.0°C	3.3	0.8	14.715 h
July, selected	33.4°C16.6°C	16.6°C	0.1	0.0	14.515 h
August	32.6°C16.2°C	16.2°C	1.2	0.1	13.614 h
September	30.3°C15.3°C	15.3°C	1.9	0.6	12.512 h
October	24.9°C12.2°C	12.2°C	20	2.4	11.311 h
November	17.9°C7.7°C	7.7°C	39	5.2	10.210 h
December	13.5°C4.7°C	4.7°C	74	7.9	9.610 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

July in nearby cities

Distance from Manteca

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