Climate and monthly weather forecastButler, PA
Climate and monthly weather forecast
The climate of Butler
Butler, Pennsylvania, has a predominantly Humid continental climate, falling under the Köppen climate classification of Dfb, signifying a climate with no dry season and warm summers. The climatic conditions vary noticeably from season to season, with fluctuating temperatures, abundant precipitation, and diverse wind patterns.In the annual record, the highest temperatures climb to about 82.2°F (27.9°C) in the warmest month of July, while they can plunge to about 19.8°F (-6.8°C) in January, the coldest month. Low temperatures exhibit a similar pattern, escalating from a low of 27.1°F (-2.7°C) in December to a peak of 60.8°F (16°C) in July.
Across the year, rainfall in Butler ranges from 1.61" (41mm) in November to 2.8" (71mm) in May. Correspondingly, the number of rainy days follows a similar trend with a peak of 17.9 days in May and a low of 8.6 days in January. Snowfall is typically seen from October to April, peaking in February with 3.98" (101mm) and 13 snowfall days.
The best time to visit Butler
The optimal time to visit Butler is during late spring and early summer months, May to June. During this period, the weather is warm and pleasant with average high temperatures ranging from 71.1°F (21.7°C) in May to 77.5°F (25.3°C) in June. While rainfall is relatively high in these months ensues, beautifying the landscape but also making commutation a bit onerous. Relative humidity at 86% and duller daylight of 9.6 hours characterize January. Winter sports aficionado deem this month as the ideal setting for their exhilarating escapades.In Butler, the lowest average temperatures are observed in January, with a high of 31.6°F (-0.2°C) and a low of 19.8°F (-6.8°C). The average relative humidity in January is 86%. In January, the rain falls for 8.6 days. Throughout January, 1.73" (44mm) of precipitation is accumulated. In Butler, during the entire year, the rain falls for 162.5 days and collects up to 26.02" (661mm) of precipitation. January through May, October through December are months with snowfall. In Butler, in January, during 17 snowfall days, 3.78" (96mm) of snow is typically accumulated. In Butler, during the entire year, snow falls for 58.1 days and aggregates up to 14.41" (366mm) of snow. In Butler, the average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:43 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:30 am and sunset at 5:35 pm EST. With an average of 2.7h of sunshine, January has the least sunshine of the year. The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Weather in February
February brings a slight relief from the chilling January as Butler, Pennsylvania gears up for the earliest hints of an approaching spring. There's a marginal elevation in temperature from the previous month, making outdoor activities a bit more appealing. Weather in February »Weather in March
March witnesses the retreat of snowy winters and a gradual advent of spring in Butler, Pennsylvania. The temperatures rise, the snow melts away leaving just 2.32" (59mm), and Butler residents experience longer daylight hours compared to the previous months. Weather in March »Weather in April
April marks the full-blown Spring season in Butler, Pennsylvania with the environment decked up in shades of blossoms. The weather differs significantly from March with rainfall amounting to 2.72" (69mm). The daylight duration extends to 13.3 hours and the healthy level of UV index remains constant from the previous month at 3. Weather in April »Weather in May
May is a month of many transitions in Butler, Pennsylvania; the region moves from colorful spring to the warmer threshold of summer. Weather patterns vitiate to accommodate a higher overall monthly temperature. Drier wind conditions prevail, with average wind speed registering around 6.2mph (10km/h). Weather in May »Weather in June
Butler, Pennsylvania greets summer in June, with the weather turning considerably warmer and plants fully leafed out. The prolonged daylight hours to 15.1 hours, the warmest of the year, enhances the beauty of the surroundings. There are a peak UV index of 6 and highest temperature of 77.5°F (25.3°C). Weather in June »Weather in July
July stands out as the warmest month in Butler, Pennsylvania with temperatures soaring to their peak. An average high temperature of 82.2°F (27.9°C) makes afternoon outdoor activities challenging even with the 60.8°F (16°C) night providing a welcome respite from the heat. Weather in July »Weather in August
August carries forward the touch of the July heat in Butler, Pennsylvania, albeit with a slight dip in temperatures as summer starts its retreat. The days continue to be long enough for outdoor recreations, albeit with a comforting wind speed of 4.9mph (7.9km/h). Weather in August »Weather in September
September witnesses the advent of autumn in Butler, Pennsylvania, with a noticeable drop in temperatures from the summer highs. Compared to August, the days become shorter and the influx of rainfall of 2.05" (52mm) marks the arrival of fall. Weather in September »Weather in October
The full-fledged arrival of Fall signals the return of cooler days in October in Butler, Pennsylvania. The city witnesses lower temperatures and an increased wind speed of 6.5mph (10.5km/h), distinct from last month. October sustains longer sunshine days at 14.4 days compared to the previous months. Weather in October »Weather in November
November marks the commencement of winter with Butler, Pennsylvania experiencing a significant drop in temperatures compared to October. With 1.42" (36mm) of snow, the weather starts setting the stage for the upcoming winter. This period witnesses an imperceptible transition, from festive fall to peaceful winter preparations. Weather in November »Weather in December
Finally, Butler, Pennsylvania embraces winter, rounded off by the excitement of Christmas and an impending new year. The weather befits the festive spirit, with temperatures further declining and snowfall chronicling 2.44" (62mm), turning the town into a winter wonderland. Weather in December »Updated: Aug 23, 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
January, with its high-temperature average of 31.6°F (-0.2°C) and a low-temperature average of 19.8°F (-6.8°C), is the coldest month in Butler.
In Butler, Pennsylvania, during the entire year, the rain falls for 162.5 days and collects up to 26.02" (661mm) of precipitation.
Months with snowfall are January through May, October through December.
In Butler, during the entire year, snow falls for 58.1 days and aggregates up to 14.41" (366mm) of snow.
With an average of 2.7h of sunshine, January has the least sunshine of the year.
February is the most humid month, with an average relative humidity of 87%.
The month with the most snowfall is February, when snow falls for 13 days and typically aggregates up to 3.98" (101mm) of snow.
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, July and August, with an average relative humidity of 77%.
The month with the most rainfall is May, when the rain falls for 17.9 days and typically aggregates up to 2.8" (71mm) of precipitation.
In Butler, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 6min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
The highest temperatures are recorded in July, with averages reaching a high of 82.2°F (27.9°C) and a low of 60.8°F (16°C).
August has the most sunshine of the year, with an average of 10h of sunshine.
The month with the least rainfall is November, when the rain falls for 9.8 days and typically collects 1.61" (41mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Butler, PA
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Butler, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Butler, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity
Butler, PA
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall
Butler, PA
- Average rainfall in January:
1.73" - Average rainfall in February:
1.89" - Average rainfall in March:
1.93" - Average rainfall in April:
2.72" - Average rainfall in May:
2.8" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.48" - Average rainfall in August:
1.93" - Average rainfall in September:
2.05" - Average rainfall in October:
2.24" - Average rainfall in November:
1.61" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days
Butler, PA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
14 days - Average rainfall days in October:
15 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.6 days).
Average snowfall
Butler, PA
- Average snowfall in January:
3.78" - Average snowfall in February:
3.98" - Average snowfall in March:
2.32" - Average snowfall in April:
0.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Butler, PA
- Average snowfall days in January:
17 days - Average snowfall days in February:
13 days - Average snowfall days in March:
7.5 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.4 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:
0.3 days - Average snowfall days in November:
5 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Butler, PA
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
2h and 42min - Average sunshine in February:
3h and 12min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 12min - Average sunshine in October:
5h and 6min - Average sunshine in November:
4h and 36min - Average sunshine in December:
3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days
Butler, PA
- Average sunshine days in January:
10 days - Average sunshine days in February:
9 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
15.4 days - Average sunshine days in December:
10.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (9 days).
Average UV index
Butler, PA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Butler, PA
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Butler, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
