May weather forecastJohnstown, NY
May
Weather in May
May, the last month of the spring in Johnstown, is an enjoyable month, with an average temperature fluctuating between 45.5°F (7.5°C) and 66.4°F (19.1°C).Temperature
Johnstown in May sees a temperature change, with average high-temperatures moving from a fresh 52.5°F (11.4°C) in April to a comfortable 66.4°F (19.1°C). In Johnstown, May's nights observe an average temperature dip to a chilly 45.5°F (7.5°C).Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.2 days and accumulates 3.46" (88mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Johnstown aggregates 0.16" (4mm) of snow. In Johnstown, during the entire year, snow falls for 72.7 days and aggregates up to 43.46" (1104mm) of snow.Daylight
The average length of the day in May is 14h and 41min.On the first day of the month, sunrise is at 5:50 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:21 am and sunset at 8:29 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Johnstown, NY
- Average high temperature in May: 66.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in May
Johnstown, NY
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Johnstown, NY
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).
Average humidity in May
Johnstown, NY
- Average humidity in May: 76%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Johnstown, NY
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Johnstown, NY
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in May
Johnstown, NY
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (11.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Johnstown, NY
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Johnstown, NY
- Average daylight in May: 14h and 42min
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 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in May
Johnstown, NY
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Johnstown, NY
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Johnstown, NY
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in May
Johnstown, NY
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).
