June weather forecastGrantham, PA
June
Weather in June
June, the first month of the summer in Grantham, is a moderately hot month, with an average temperature ranging between min 59.5°F (15.3°C) and max 78.3°F (25.7°C).Temperature
June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's pleasant 70.3°F (21.3°C) to a moderately hot 78.3°F (25.7°C). Grantham experiences a nighttime temperature average of 59.5°F (15.3°C) during June.Humidity
In Grantham, the average relative humidity in June is 78%.Rainfall
In Grantham, during June, the rain falls for 15.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Grantham, during the entire year, the rain falls for 137.7 days and collects up to 18.43" (468mm) of precipitation.Snowfall
In Grantham, snow does not fall in May through September.Daylight
June has the longest days of the year, with an average of 15h and 0min of daylight.On the first day of June, sunrise is at 5:40 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:41 pm EDT.
Sunshine
In Grantham, the average sunshine in June is 10h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Grantham, PA
- Average high temperature in June: 78.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in June: 59.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in June
Grantham, PA
- Average pressure in June: 29.95"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in June
Grantham, PA
- Average wind speed in June: 6mph
The windiest months (with the highest average wind speed) are February, March and April (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in June
Grantham, PA
- Average humidity in June: 78%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in June
Grantham, PA
- Average rainfall in June: 1.61"
The wettest months (with the highest rainfall) are May and July (2.05").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in June
Grantham, PA
- Average rainfall days in June: 15.1 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in June
Grantham, PA
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Grantham, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Grantham, PA
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in June
Grantham, PA
- Average sunshine days in June: 12.6 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in June
Grantham, PA
- Average UV index in June: 6
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in June
Grantham, PA
- Average cloud cover in June: 35
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in June
Grantham, PA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
