May weather forecastKalama, WA
May
Weather in May
The last month of the spring, May, is a comfortable month in Kalama, Washington, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 41.4°F (5.2°C).Temperature
Kalama's weather in May presents a rise in the average high-temperature, moving from 55.8°F (13.2°C) in April to a still refreshing 64.8°F (18.2°C). Kalama logs a considerable temperature decrease from the daytime highs during the nights in May, with an average reading of 41.4°F (5.2°C).Humidity
In Kalama, the average relative humidity in May is 78%.Rainfall
In May, the rain falls for 14.9 days. Throughout May, 2.64" (67mm) of precipitation is accumulated. In Kalama, during the entire year, the rain falls for 190.2 days and collects up to 42.48" (1079mm) of precipitation.Snowfall
In Kalama, snow does not fall in April through October.Daylight
The average length of the day in May in Kalama is 14h and 59min.On the first day of May, sunrise is at 5:56 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:54 pm PDT.
Sunshine
In May, the average sunshine is 7.8h.UV index
In Kalama, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kalama, WA
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (42.1°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).
Average pressure in May
Kalama, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Kalama, WA
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in May
Kalama, WA
- Average humidity in May: 78%
The months with the highest relative humidity are February and November (88%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in May
Kalama, WA
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is January (6.34").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in May
Kalama, WA
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is March (21.6 days).
The month with the least rainy days is July (6.7 days).
Average snowfall in May
Kalama, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Kalama, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.6 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
Kalama, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in May
Kalama, WA
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is August (21.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in May
Kalama, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Kalama, WA
- Average cloud cover in May: 55
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in May
Kalama, WA
- Average visibility in May: 4mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).





