St. Marys, Pennsylvania, United States Climate

Weather: 1.86°C/35.35°F, Wind SW at 3.6 km/h, 57% Humidity, 0% Chance of rain

United States
(Photo by Kieran Somerville on Unsplash)
Contents

St. Marys Climate Summary

Located at an elevation of 505.08 meters (1657.09 feet) above sea level, St. Marys has a Humid continental, no dry season, warm summer climate (Classification: Dfb). The district’s yearly temperature is 9.46ºC (49.03ºF) and it is -3.18% lower than United States’s averages. St. Marys typically receives about 25.96 millimeters (1.02 inches) of precipitation and has 48.8 rainy days (13.37% of the time) annually.

CountryUnited States
CityPennsylvania
Longitude-78.5609398
Latitude41.4273738
Attitude/Elevation505.08m (1657.09ft)
Local timeThursday 14:27
Annual high temperature12.61ºC (54.7ºF)
Annual low temperature3.89ºC (39.0ºF)
Average annual precip.25.96mm (1.02in)
Warmest monthJuly (27.01ºC / 80.62ºF)
Coldest MonthJanuary (-8.09ºC / 17.44ºF)
Wettest MonthMay (34.65mm / 1.36in)
Driest MonthNovember (17.94mm / 0.71in)
Number of days with rainfall (≥ 1.0 mm)48.8 days (13.37%)
Days with no rain316.2 days (86.63%)
Humidity81.8%

Climate St. Marys: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)10.0(50.0)18.0(64.4)18.0(64.4)23.0(73.4)30.0(86.0)32.0(89.6)33.0(91.4)31.0(87.8)29.0(84.2)28.0(82.4)19.0(66.2)12.0(53.6)33.0(91.4)
Average high °C (°F)-1.38(29.52)1.8(35.24)4.82(40.68)10.28(50.5)18.86(65.95)23.03(73.45)27.01(80.62)25.04(77.07)21.68(71.02)13.9(57.02)5.02(41.04)1.27(34.29)12.61(54.7)
Daily mean °C (°F)-3.8(25.16)-0.82(30.52)1.74(35.13)7.04(44.67)15.32(59.58)19.51(67.12)23.17(73.71)21.13(70.03)17.71(63.88)10.67(51.21)2.64(36.75)-0.76(30.63)9.46(49.03)
Average low °C (°F)-8.09(17.44)-5.64(21.85)-3.28(26.1)1.17(34.11)8.63(47.53)12.0(53.6)15.54(59.97)14.53(58.15)11.56(52.81)5.66(42.19)-1.36(29.55)-4.08(24.66)3.89(39.0)
Record low °C (°F)-25.0(-13.0)-25.0(-13.0)-15.0(5.0)-10.0(14.0)-5.0(23.0)2.0(35.6)9.0(48.2)8.0(46.4)2.0(35.6)-3.0(26.6)-16.0(3.2)-13.0(8.6)-25.0(-13.0)
Average precipitation mm (inches)21.18(0.83)28.11(1.11)22.15(0.87)30.15(1.19)34.65(1.36)30.89(1.22)28.45(1.12)23.14(0.91)29.25(1.15)22.34(0.88)17.94(0.71)23.3(0.92)25.96(1.02)
Average precipitation days (≥ 1.0 mm)3.364.183.364.455.364.454.915.03.453.643.03.644.07
Average relative humidity (%)82.1683.676.8778.0281.8579.7380.7782.8682.9883.5282.9486.3581.8
Mean monthly sunshine hours6.357.058.268.8211.212.7312.5910.449.758.766.364.888.93

Climate Graph

The chart below shows the mean monthly temperature and precipitation of St. Marys in recent years.

St. Marys

St. Marys Temperature by Month

July
23.17°C | 73.71°F
August
21.13°C | 70.03°F
June
19.51°C | 67.12°F
September
17.71°C | 63.88°F
May
15.32°C | 59.58°F
October
10.67°C | 51.21°F
April
7.04°C | 44.67°F
November
2.64°C | 36.75°F
March
1.74°C | 35.13°F
December
-0.76°C | 30.63°F
February
-0.82°C | 30.52°F
January
-3.8°C | 25.16°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature32.0°C (89.6°F)27.19°C (80.94°F)19.0°C (66.2°F)
Avg Temperature28.0°C (82.4°F)23.26°C (73.87°F)18.0°C (64.4°F)
Min Temperature21.0°C (69.8°F)15.48°C (59.86°F)10.0°C (50.0°F)
Dew PointMaxAverageMin
Dew Point21.0°C (69.8°F)17.16°C (62.89°F)11.0°C (51.8°F)
PrecipitationMaxAverageMinSum
Precipitation15.9mm | 0.63in3.19mm | 0.13in0.0mm | 0in99.0mm | 3.9in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind12.0kmh | 7.46mph7.1kmh | 4.41mph3.0kmh | 1.86mph
Gust Wind19.0kmh | 11.81mph11.13kmh | 6.92mph4.0kmh | 2.49mph
Sea Level PressureMaxAverageMin
Sea Level Pressure15.9mb3.19mb0.0mb
St. Marys

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
July° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-07-0122 | 71.613 | 55.4735 | 3.1129.97 | 10150.0 | 0.0
2019-07-0224 | 75.219 | 66.2879 | 5.5929.85 | 10113.9 | 0.15
2019-07-0323 | 73.419 | 66.2906 | 3.7329.91 | 10133.6 | 0.14
2019-07-0425 | 77.020 | 68.0906 | 3.7330.0 | 10165.9 | 0.23
2019-07-0524 | 75.221 | 69.8926 | 3.7330.03 | 10175.6 | 0.22
2019-07-0624 | 75.221 | 69.8936 | 3.7329.91 | 10133.5 | 0.14
2019-07-0722 | 71.618 | 64.4898 | 4.9729.94 | 10146.0 | 0.24
2019-07-0823 | 73.416 | 60.8827 | 4.3529.97 | 10154.9 | 0.19
2019-07-0925 | 77.018 | 64.4803 | 1.8630.06 | 10180.4 | 0.02
2019-07-1025 | 77.018 | 64.4816 | 3.7330.0 | 10162.5 | 0.1
2019-07-1123 | 73.419 | 66.2916 | 3.7329.83 | 10102.6 | 0.1
2019-07-1222 | 71.615 | 59.0819 | 5.5929.85 | 10110.0 | 0.0
2019-07-1324 | 75.215 | 59.0778 | 4.9729.94 | 10140.7 | 0.03
2019-07-1423 | 73.415 | 59.07510 | 6.2130.03 | 10170.1 | 0.0
2019-07-1523 | 73.413 | 55.4704 | 2.4930.09 | 10190.0 | 0.0
2019-07-1622 | 71.618 | 64.4886 | 3.7330.03 | 10179.8 | 0.39
2019-07-1722 | 71.620 | 68.0967 | 4.3529.91 | 10136.7 | 0.26
2019-07-1826 | 78.819 | 66.2805 | 3.1129.91 | 10130.1 | 0.0
2019-07-1927 | 80.621 | 69.88511 | 6.8429.88 | 10124.4 | 0.17
2019-07-2028 | 82.421 | 69.88012 | 7.4629.88 | 10123.3 | 0.13
2019-07-2126 | 78.821 | 69.88512 | 7.4629.88 | 10125.0 | 0.2
2019-07-2218 | 64.417 | 62.6985 | 3.1129.85 | 101115.9 | 0.63
2019-07-2319 | 66.214 | 57.2847 | 4.3529.91 | 10133.5 | 0.14
2019-07-2420 | 68.011 | 51.8755 | 3.1130.03 | 10170.6 | 0.02
2019-07-2521 | 69.812 | 53.6755 | 3.1130.15 | 10210.6 | 0.02
2019-07-2623 | 73.414 | 57.2724 | 2.4930.27 | 10250.0 | 0.0
2019-07-2724 | 75.215 | 59.0737 | 4.3530.21 | 10230.1 | 0.0
2019-07-2823 | 73.417 | 62.68311 | 6.8430.06 | 10182.8 | 0.11
2019-07-2925 | 77.018 | 64.48010 | 6.2129.97 | 10150.3 | 0.01
2019-07-3022 | 71.618 | 64.49010 | 6.2129.94 | 10145.2 | 0.2
2019-07-3123 | 73.416 | 60.8794 | 2.4930.03 | 10171.0 | 0.04

St. Marys 3 Year Historical Weather Data

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