Grass Valley
California, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Grass Valley, CA

May, the last month of the spring, in Grass Valley, is an agreeable month, with average temperature ranging between max 71.1°F (21.7°C) and min 45.3°F (7.4°C).

Temperature

In Grass Valley, the average high-temperature increases, from an enjoyable 62.1°F (16.7°C) in April, to an agreeable 71.1°F (21.7°C). In Grass Valley, the average low-temperature is 45.3°F (7.4°C).

Rainfall

In Grass Valley, it is raining for 5.5 days, with typically 2" (50mm) of accumulated precipitation. In Grass Valley, during the entire year, the rain falls for 84.6 days and collects up to 53.2" (1352.4mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day is 14.4h.

What is the temperature in May in Grass Valley?

In Grass Valley, in May, the average high-temperature is 71.1°F (21.7°C), and the average low-temperature is 45.3°F (7.4°C).

How many days does it rain in May in Grass Valley?

In Grass Valley, California, in May, it is raining for 5.5 days, with typically 2" (50mm) of accumulated precipitation.

Does it snow in Grass Valley in May?

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

When it does not snow in Grass Valley?

May through October are months without snowfall.

What is the average length of the day in May in Grass Valley?

In Grass Valley, the average length of the day in May is 14.4h.
Average temperature in May - Grass Valley, CA
  • Average high temperature in May: 71°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (53.1°F).

  • Average low temperature in May: 45.4°F

The month with the highest average low temperature is July (56.2°F).
The coldest month (with the lowest average low temperature) is December (31.7°F).

Average rainfall in May - Grass Valley, CA
  • Average rainfall in May: 2"

The wettest month (with the highest rainfall) is January (9.7").
The driest month (with the lowest rainfall) is July (0.1").

Average rainfall days in May - Grass Valley, CA
  • Average rainfall days in May: 5.5 days

The month with the highest number of rainy days is January (13.1 days).
The month with the lowest number of rainy days is July (0.2 days).

Average snowfall in May - Grass Valley, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in May - Grass Valley, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is March (1.1 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May - Grass Valley, CA
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).