Jonestown, Pennsylvania Climate
United States
Pop. 1,958 Elev. 148 m / 486 ft
TZ: America/New_York (UTC-4) ·
Summers in Jonestown are warm, with July highs around 86°F (30°C), while winters are frigid with January lows of 21°F (-6°C). Humidity pushes the summer feels-like temperature to 96°F (36°C), while wind chill can drive winter lows to 12°F (-11°C). Expect around 61 rainy days annually (38.6 in / 982 mm total), with snow on 5 days and 30 in (769 mm) of annual accumulation. The city averages 108 sunny days per year and around 35 thunderstorm days. Nearby lake water reaches 80°F (27°C) in summer.
| Temperature | 86°F (30°C) high | 21°F (-6°C) low |
| Feels like | 96°F (35°C) high | 12°F (-11°C) low |
| Rain | 61 days | 38.6 in (982 mm) /yr |
| Snow | 5 days | 30.3 in (769 mm) /yr |
| Sky | 108 sunny | 35 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
49
Jan 70
Feb 48
Mar 70
Apr 75
May 63
Jun 60
Jul 47
Aug 58
Sep 41
Oct 60
Nov 65
Dec Humidity (%)
57
Jan 56
Feb 50
Mar 54
Apr 70
May 72
Jun 74
Jul 67
Aug 65
Sep 66
Oct 62
Nov 64
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 22 mi Lancaster Airport (LNS)
Ski resort 32 mi Roundtop Mountain Resort
National park 82 mi Appalachian National Scenic Trail
Mountain peak
(5,102 ft) 287 mi Algonquin Peak
Hospital 6 mi Good Samaritan Hospital
Hiking trail 11 mi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 33°F 1°C | 21°F -6°C | 0.4 in 11 mm | 7.0 in177 mm | 12 |
| February | 39°F 4°C | 27°F -3°C | 2.0 in 52 mm | 9.5 in242 mm | 3 |
| March | 58°F 14°C | 37°F 3°C | 2.8 in 71 mm | 0.2 in5 mm | 14 |
| April | 63°F 17°C | 46°F 8°C | 4.2 in 105 mm | — | 5 |
| May | 70°F 21°C | 54°F 12°C | 7.2 in 184 mm | — | 4 |
| June | 81°F 27°C | 64°F 18°C | 4.9 in 124 mm | — | 8 |
| July | 86°F 30°C | 70°F 21°C | 5.5 in 140 mm | — | 7 |
| August | 80°F 27°C | 61°F 16°C | 1.6 in 40 mm | — | 15 |
| September | 78°F 26°C | 59°F 15°C | 2.6 in 67 mm | — | 12 |
| October | 64°F 18°C | 46°F 8°C | 3.7 in 94 mm | — | 16 |
| November | 52°F 11°C | 37°F 3°C | 1.6 in 42 mm | 1.6 in40 mm | 7 |
| December | 36°F 2°C | 24°F -4°C | 2.1 in 53 mm | 12.1 in306 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 0 |
| February | 3 | 0 |
| March | 14 | 2 |
| April | 5 | 4 |
| May | 4 | 6 |
| June | 8 | 7 |
| July | 7 | 7 |
| August | 15 | 2 |
| September | 12 | 4 |
| October | 16 | 1 |
| November | 7 | 0 |
| December | 5 | 2 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 33°F 0°C |
| February | 32°F 0°C |
| March | 45°F 7°C |
| April | 54°F 12°C |
| May | 63°F 17°C |
| June | 74°F 23°C |
| July | 80°F 27°C |
| August | 73°F 23°C |
| September | 69°F 20°C |
| October | 56°F 14°C |
| November | 44°F 6°C |
| December | 32°F 0°C |