Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May witnesses an increase in the average high-temperature, moving from a fresh 54.1°F (12.3°C) in April to an enjoyable 65.1°F (18.4°C). Rockford experiences a drastic reduction from day temperatures to an average low of 41.2°F (5.1°C) in May.Humidity
The average relative humidity in May is 65%.Rainfall
In Rockford, during May, the rain falls for 12.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Rockford, Washington, during the entire year, the rain falls for 125.4 days and collects up to 17.28" (439mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Rockford aggregates 0.04" (1mm) of snow. In Rockford, during the entire year, snow falls for 56.4 days and aggregates up to 37.4" (950mm) of snow.Daylight
In May, the average length of the day is 15h and 8min.On the first day of the month, sunrise is at 5:30 am and sunset at 8:00 pm. On the last day of May, sunrise is at 4:55 am and sunset at 8:37 pm PDT.
Sunshine
In Rockford, the average sunshine in May is 10.3h.UV index
In Rockford, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Enhance your sun protection with tightly woven, yet airy clothing. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rockford in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Rockford, WA
- Average high temperature in May: 65.1°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in May
Rockford, WA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Rockford, WA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in May
Rockford, WA
- Average humidity in May: 65%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).
Average rainfall in May
Rockford, WA
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in May
Rockford, WA
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).
Average snowfall in May
Rockford, WA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Rockford, WA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Rockford, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in May
Rockford, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in May
Rockford, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Rockford, WA
- Average cloud cover in May: 34
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Rockford, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Rockford, Washington, USA
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