Weather in Heppner in August

General weather information about Heppner

Average annual temperature is 9.0 °C

Absolute maximum temperature: 36.5 °C

Absolute minimum temperature: -28.3 °C

Number of sunny days: 210 days

Number of rainy days: 110 days

Number of snow days: 45 days

Look at detailed online map of Heppner

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

Heppner air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	10.0	11.9	17.3	25.0	27.5	32.6	35.6	36.5	34.1	29.9	20.2	13.8
Average daytime temperature (°C)	1.2	4.3	6.0	11.8	22.5	25.1	29.1	29.4	25.4	15.8	10.1	6.2
Average temperature (°C)	-2.9	-2.7	-1.4	4.4	15.8	19.0	22.2	22.2	18.2	8.8	3.5	0.4
Average night temperature (°C)	-6.2	-7.0	-6.3	-1.2	9.6	13.5	15.6	16.3	12.2	3.7	-1.2	-3.3
Absolute minimum temperature (°C)	-19.1	-28.3	-14.1	-15.0	1.0	7.6	10.8	10.9	7.1	-9.3	-10.8	-7.8

Heppner 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	9.0
Daylight mean duration (h)	9.4	10.5	11.9	13.4	14.7	15.3	15.0	13.9	12.5	11.0	9.7	9.0
Daylight minimum duration (h)	9.0	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)	5.5	8.1	8.2	10.2	11.1	11.5	12.9	11.4	10.7	8.5	7.6	6.6
Precipitation (mm)	30	21	48	47	114	121	27	52	24	66	7	14
Sunny days	16	18	11	18	12	13	17	19	18	19	25	24
Rainy days	3	4	5	8	19	17	14	12	12	10	3	3
Snow days	12	6	15	4	0	0	0	0	0	2	2	4

Heppner - weather forecast by months

Heppner weather in january Heppner weather in february Heppner weather in march Heppner weather in april Heppner weather in may Heppner weather in june Heppner weather in july Heppner weather in august Heppner weather in september Heppner weather in october Heppner weather in november Heppner weather in december

Best time to visit Heppner:

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

July — 12.9(h)

Months with the longest average daylight duration in Heppner:

June — 15.3(h)

The largest precipitation sum in Heppner is at

May — 114(mm)

June — 121(mm)

October — 66(mm)

Weather forecast in the closest to Heppner admin centers