May weather forecastMiddletown, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in Middletown, California, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 73.4°F (23°C).Temperature
May brings a slight rise in Middletown's average high-temperature, moving from a refreshing 67.6°F (19.8°C) in April to a moderately hot 73.4°F (23°C). Nightly readings in May display a noticeable downturn from daily highs, with the average low-temperature registering a frosty 47.5°F (8.6°C).Humidity
In May, the average relative humidity is 64%.Rainfall
In Middletown, California, during May, the rain falls for 5.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Middletown, during the entire year, the rain falls for 77 days and collects up to 17.05" (433mm) of precipitation.Snowfall
In Middletown, snow does not fall in January, March through December.Daylight
In Middletown, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:29 pm PDT.
Sunshine
The average sunshine in May is 10.6h.UV index
In Middletown, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during May translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Middletown, CA
- Average high temperature in May: 73.4°F
The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in May
Middletown, CA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in May
Middletown, CA
- Average wind speed in May: 5.7mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in May
Middletown, CA
- Average humidity in May: 64%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (53%).
Average rainfall in May
Middletown, CA
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Middletown, CA
- Average rainfall days in May: 5.5 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in May
Middletown, CA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Middletown, CA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are February and March (0.1 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Middletown, CA
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 10h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Middletown, CA
- Average sunshine days in May: 24.3 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in May
Middletown, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Middletown, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in May
Middletown, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
