Weather in Gresham in September

General weather information about Gresham

Average annual temperature is 12.0 °C

Absolute maximum temperature: 41.0 °C

Absolute minimum temperature: -11.4 °C

Number of sunny days: 164 days

Number of rainy days: 200 days

Number of snow days: 1 day

Look at detailed online map of Gresham

* Weather data for Gresham United States is based on climate observations for 2026 year

Gresham air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	11.8	13.2	17.5	26.2	30.5	32.0	36.1	41.0	34.0	26.6	17.3	15.8
Average daytime temperature (°C)	8.2	7.9	10.5	13.7	22.8	25.3	30.3	31.2	24.3	18.0	11.5	9.9
Average temperature (°C)	5.0	3.4	5.1	8.5	15.6	17.2	21.5	22.8	17.2	12.8	7.7	7.0
Average night temperature (°C)	2.5	0.3	1.6	4.8	10.0	11.1	14.4	16.2	12.4	9.5	5.1	5.1
Absolute minimum temperature (°C)	-5.4	-11.4	-2.5	-0.5	6.1	7.1	11.4	11.3	8.2	-0.1	-1.7	0.7

Gresham monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	8.0
Daylight mean duration (h)	9.2	10.4	11.9	13.5	14.9	15.6	15.3	14.1	12.5	10.9	9.5	8.8
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	3.2	4.6	5.6	5.9	10.4	12.0	13.1	11.5	8.5	6.3	5.1	2.7
Precipitation (mm)	137	115	178	211	31	38	2	21	87	96	173	312
Sunny days	7	10	3	5	17	23	28	23	15	15	12	6
Rainy days	24	17	28	25	14	7	3	8	15	16	18	25
Snow days	0	1	0	0	0	0	0	0	0	0	0	0

Gresham - weather forecast by months

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Best time to visit Gresham:

The best time to visit Gresham during the most sunny months:

May — 10.4(h)
June — 12.0(h)
July — 13.1(h)
August — 11.5(h)

Months with the longest average daylight duration in Gresham:

June — 15.6(h)
July — 15.3(h)

The largest precipitation sum in Gresham is at

March — 178(mm)

April — 211(mm)

November — 173(mm)

December — 312(mm)

Weather forecast in the closest to Gresham admin centers