Climate and monthly weather forecastSaint Thomas, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Saint Thomas, Pennsylvania, is an icy winter month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 35.4°F (1.9°C). Temperature records mark January as the coldest month, with highs averaging 35.4°F (1.9°C) and lows at 22.5°F (-5.3°C). Weather in January »Weather in February
February, the last month of the winter in Saint Thomas, is another cold month, with temperature in the range of an average low of 24.6°F (-4.1°C) and an average high of 39.9°F (4.4°C). Saint Thomas marks the onset of February with an average high-temperature of a still wintry 39.9°F (4.4°C), subtly divergent from January's 35.4°F (1.9°C). Weather in February »Weather in March
March, the first month of the spring in Saint Thomas, is a chilly month, with an average temperature varying between 32°F (0°C) and 48.7°F (9.3°C). With the onset of March, Saint Thomas observes a minor temperature ascent, with the average high-temperature adjusting from February's cold 39.9°F (4.4°C) to a chilly 48.7°F (9.3°C). Weather in March »Weather in April
April is a refreshing spring month in Saint Thomas, Pennsylvania, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 41.7°F (5.4°C). April indicates a change in the average high-temperature, moving up from a chilly 48.7°F (9.3°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Saint Thomas, Pennsylvania, with an average temperature varying between 51.6°F (10.9°C) and 71.2°F (21.8°C). May comes with an increase, with the average high-temperature moving from a comfortable 61.3°F (16.3°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Saint Thomas, Pennsylvania, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 58.6°F (14.8°C). The beginning of June marks a minor shift in the average high-temperature, moving from May's pleasant 71.2°F (21.8°C) to a warm 79.5°F (26.4°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Saint Thomas, Pennsylvania, with an average temperature ranging between max 84.4°F (29.1°C) and min 62.6°F (17°C). Saint Thomas's warmest temperatures are experienced in July, with average high temperatures of 84.4°F (29.1°C) and lows of 62.6°F (17°C). In July, the average heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Saint Thomas, is another warm month, with an average temperature ranging between max 81.9°F (27.7°C) and min 61.5°F (16.4°C). The shift into August records an average high-temperature of a still moderately hot 81.9°F (27.7°C), subtly varied from July's 84.4°F (29.1°C). Weather in August »Weather in September
September, the first month of the autumn in Saint Thomas, is still a warm month, with an average temperature fluctuating between 55.6°F (13.1°C) and 74.8°F (23.8°C). A modest decline in the average high-temperature is seen during September, decreasing from a warm 81.9°F (27.7°C) in August to a still moderately hot 74.8°F (23.8°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Saint Thomas, Pennsylvania, with an average temperature fluctuating between 63.3°F (17.4°C) and 46°F (7.8°C). The onset of October brings a small change in high-temperatures, falling from a warm 74.8°F (23.8°C) in September to an enjoyable 63.3°F (17.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Saint Thomas, Pennsylvania, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 50.5°F (10.3°C). November brings a drop in Saint Thomas's average high-temperature, falling from a refreshing 63.3°F (17.4°C) in October to a fresh 50.5°F (10.3°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Saint Thomas, Pennsylvania, with temperature in the range of an average high of 41.2°F (5.1°C) and an average low of 28.9°F (-1.7°C). December involves a decrease in temperature, down from a fresh 50.5°F (10.3°C) in November to a cold 41.2°F (5.1°C). Weather in December »Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest period is January, when temperatures fluctuate between an average high of 35.4°F (1.9°C) and a low of 22.5°F (-5.3°C).
The month with the least rainfall is January, when the rain falls for 9.2 days and typically collects 1.85" (47mm) of precipitation.
In Saint Thomas, during the entire year, the rain falls for 161.8 days and collects up to 28.07" (713mm) of precipitation.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 8.1 days and accumulates 4.53" (115mm) of snow.
Throughout the year, there are 26.6 snowfall days, and 14.69" (373mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February, May, October and December, with an average relative humidity of 79%, are most humid months.
February has the least sunshine of the year, with an average of 4.6h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The months with the lowest humidity are April and July, with an average relative humidity of 75%.
The month with the most rainfall is May, when the rain falls for 18.8 days and typically aggregates up to 3.15" (80mm) of precipitation.
In Saint Thomas, snow does not fall in May through September.
May through July, with an average maximum UV index of 6, are months with the highest UV index.
With an average of 15h and 0min of daylight, June has the longest days of the year.
The warmest time of the year is July, with temperatures averaging a high of 84.4°F (29.1°C) and a low of 62.6°F (17°C).
With an average of 10.5h of sunshine, July has the most sunshine of the year.
The month with the shortest days in Saint Thomas, Pennsylvania, is December, with an average of 9h and 24min of daylight.
Average temperature
Saint Thomas, PA
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Saint Thomas, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"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
Saint Thomas, PA
- Average wind speed in January:
7.7mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Saint Thomas, PA
The months with the highest relative humidity are February, May, October and December (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall
Saint Thomas, PA
- Average rainfall in January:
1.85" - Average rainfall in February:
1.93" - Average rainfall in March:
2.17" - Average rainfall in April:
2.68" - Average rainfall in May:
3.15" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.76" - Average rainfall in September:
1.97" - Average rainfall in October:
2.28" - Average rainfall in November:
1.89" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Saint Thomas, PA
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall
Saint Thomas, PA
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Saint Thomas, PA
- Average snowfall days in January:
8.1 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.6 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Saint Thomas, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 January:
4h and 42min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Saint Thomas, PA
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Saint Thomas, PA
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, November and December (UV index 2).
Average cloud cover
Saint Thomas, PA
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Saint Thomas, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
