May weather forecast
Rockford, OR

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Weather in May

The last month of the spring, May, is an enjoyable month in Rockford, Oregon, with an average temperature varying between 40.8°F (4.9°C) and 62.4°F (16.9°C).

Temperature

With the onset of May, Rockford's average high-temperature sees a rise, moving from April's fresh 52.3°F (11.3°C) to a refreshing 62.4°F (16.9°C). Throughout the nights in May, an average low-temperature of 40.8°F (4.9°C) is noted in Rockford.

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Rockford, during May, the rain falls for 12.8 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 159.7 rainfall days, and 31.42" (798mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In May, the average length of the day is 14h and 57min.
On the first day of May, sunrise is at 5:52 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:47 pm PDT.

Sunshine

The average sunshine in May is 9.8h.

UV index

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, an average UV index of 4 transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Rockford, is 62.4°F (16.9°C), while the low-temperature averages to 40.8°F (4.9°C).

What is the average humidity in May?

In May, the average relative humidity is 70%.

How much does it rain in May?

In May, the rain falls for 12.8 days. Throughout May, 1.69" (43mm) of precipitation is accumulated.

When it does not snow?

In Rockford, snow does not fall in April through October.

How many hours of daylight does Rockford have in May?

In Rockford, the average day length in May is 14h and 57min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:52 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:47 pm PDT.

How many hours of sunshine does Rockford have in May?

In Rockford, the average sunshine duration in May is 9.8h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Rockford, OR

Average temperature in May - Rockford, OR
  • Average high temperature in May: 62.4°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (36°F).

  • Average low temperature in May: 40.8°F

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).

Average pressure in May
Rockford, OR

Average pressure in May - Rockford, OR
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).

Average wind speed in May
Rockford, OR

Average wind speed in May - Rockford, OR
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).

Average humidity in May
Rockford, OR

Average humidity in May - Rockford, OR
  • Average humidity in May: 70%

The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).

Average rainfall in May
Rockford, OR

Average rainfall in May - Rockford, OR
  • Average rainfall in May: 1.69"

The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in May
Rockford, OR

Average rainfall days in May - Rockford, OR
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).

Average snowfall in May
Rockford, OR

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

The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Rockford, OR

Average snowfall days in May - Rockford, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Rockford, OR

Average daylight in May / Average sunshine in May - Rockford, OR
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
Rockford, OR

Average sunshine days in May - Rockford, OR
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).

Average UV index in May
Rockford, OR

Average UV index in May - Rockford, OR
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in May
Rockford, OR

Average cloud cover in May - Rockford, OR
  • Average cloud cover in May: 40

The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).

Average visibility in May
Rockford, OR

Average visibility in May - Rockford, OR
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).

Rockford, Oregon, USA

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