Best year time to visit Heppner

General weather information about Heppner

Average annual temperature is 11.4 °C

Absolute maximum temperature: 38.2 °C

Absolute minimum temperature: -12.6 °C

Number of sunny days: 202

Number of rainy days: 143

Number of snow days: 20

Average annual precipitation: 379 mm

Look at detailed online map of Heppner

* Weather data for Heppner United States is based on climate observations for 2023 year

Heppner air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 14.3 11.6 13.5 27.6 32.8 33.3 35.2 38.2 30.7 24.3 18.1 16.1
Average daytime temperature (°C) 6.8 6.6 7.9 13.7 23.3 26.4 31.3 29.5 22.4 15.5 7.6 6.9
Average temperature (°C) 2.8 2 3.3 8 16.5 19.7 24.3 23.2 16.7 10.8 4.5 3.8
Average night temperature (°C) 0.2 -1.4 -0.1 4 10.8 13.8 17.5 17.7 12.2 7.1 1.6 1.2
Absolute minimum temperature (°C) -12.5 -12.6 -5.2 -2.2 5.4 5.8 12.7 11.3 5.1 -3.6 -5.1 -4.7

Heppner monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 9.7 11.1 12.7 14.2 15.4 15.7 15.6 14.7 13.3 11.7 10.2 9
Daylight mean duration (h) 9.2 10.4 11.9 13.5 14.9 15.6 15.3 14.1 12.5 11 9.6 8.8
Daylight minimum duration (h) 8.8 9.8 11.1 12.8 14.3 15.4 14.8 13.4 11.8 10.2 9 8.7
Sunshine mean duration (h) 5.1 6.4 8.2 9.4 12.3 13.3 13.9 11.4 9.7 8.1 5.7 4.4
Precipitation (mm) 30 29 58 64 20 8 3 15 29 38 30 55
Sunny days 11 13 6 10 19 24 30 24 18 18 17 12
Rainy days 15 11 18 18 12 6 1 7 12 12 12 19
Snow days 5 4 7 2 1 1

Heppner - weather forecast by months

January February March April May June July August September October November December

Best time to visit Heppner:

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

  • May — 12.3(h)
  • June — 13.3(h)
  • July — 13.9(h)
  • August — 11.4(h)

Months with the longest average daylight duration in Heppner:

  • June — 15.6(h)

The largest precipitation sum in Heppner is at

  • March — 58(mm)
  • April — 64(mm)
  • December — 55(mm)

Weather forecast in the closest to Heppner admin centers