Heppner
Oregon, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Heppner, OR

May, the last month of the spring, in Heppner, is a pleasant month, with temperature in the range of an average high of 69.3°F (20.7°C) and an average low of 43.7°F (6.5°C).

Temperature

In May, the average high-temperature slightly increases, from an enjoyable 61.3°F (16.3°C) in April, to an agreeable 69.3°F (20.7°C). In Heppner, in May, the average low-temperature is 43.7°F (6.5°C).

Rainfall

The month with the most rainfall is May when 1.7" (42.7mm) of precipitation is typically aggregated.

Snowfall

In May, it doesn't snow. April is the latest month when it typically snows. In Heppner, during the entire year, snow aggregates up to 12.1" (307.4mm).

Daylight

In May, the average length of the day is 14.9h.

What is the temperature in May in Heppner?

In May, in Heppner, Oregon, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 43.7°F (6.5°C).

How much does it rain in Heppner in May?

Throughout May, in Heppner, Oregon, 1.7" (42.7mm) of precipitation is accumulated.

What is the rainiest month in Heppner?

May is the month with the most rainfall in Heppner, with 1.7" (42.7mm) of accumulated precipitation.

Does it snow in Heppner in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Heppner?

The average length of the day in May is 14.9h.
Average temperature in May - Heppner, OR
  • Average high temperature in May: 69.2°F

The warmest month (with the highest average high temperature) is July (85.9°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in May: 43.7°F

The month with the highest average low temperature is July (53.7°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

Average rainfall in May - Heppner, OR
  • Average rainfall in May: 1.7"

The wettest month (with the highest rainfall) is May (1.7").
The driest month (with the lowest rainfall) is July (0.3").

Average snowfall in May - Heppner, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is December (4.2").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in May - Heppner, OR
  • Average daylight in May: 14.9h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).