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
The onset of May brings a rise in the average high-temperature, elevating from a cool 52.3°F (11.3°C) in April to a refreshing 65.5°F (18.6°C). An average minimum temperature of 45.1°F (7.3°C) marks the month of May.Humidity
The average relative humidity in May is 76%.Rainfall
In Hillsboro, during May, the rain falls for 15.6 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 147.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
Months with snowfall in Hillsboro are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Hillsboro aggregates 0.31" (8mm) of snow. Throughout the year, there are 54.9 snowfall days, and 37.2" (945mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 41min.On the first day of May, sunrise is at 5:39 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:19 pm EDT.
Sunshine
In Hillsboro, the average sunshine in May is 8h.UV index
In Hillsboro, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Hillsboro have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Hillsboro, NH
- Average high temperature in May: 65.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in May
Hillsboro, NH
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Hillsboro, NH
- Average wind speed in May: 6.3mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Hillsboro, NH
- Average humidity in May: 76%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Hillsboro, NH
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Hillsboro, NH
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in May
Hillsboro, NH
- Average snowfall in May: 0.31"
The month with the highest snowfall is February (10.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hillsboro, NH
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hillsboro, NH
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Hillsboro, NH
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in May
Hillsboro, NH
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Hillsboro, NH
- Average cloud cover in May: 50
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in May
Hillsboro, NH
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Hillsboro, New Hampshire, USA
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