Hartly, Delaware, United States Climate

Weather: 6.38°C/43.48°F, Wind SW at 0.45 km/h, 63% Humidity, 0% Chance of rain

United States
(Photo by Pamela Huber on Unsplash)

Hartly Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Hartly has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 14.76ºC (58.57ºF) and it is 2.12% higher than United States’s averages. Hartly typically receives about 56.19 millimeters (2.21 inches) of precipitation and has 47.91 rainy days (13.13% of the time) annually.

CountryUnited States
CityDelaware
Longitude-75.7132641
Latitude39.168723
Attitude/ElevationNonem (0ft)
Local timeFriday 08:05
Annual high temperature17.61ºC (63.7ºF)
Annual low temperature9.96ºC (49.93ºF)
Average annual precip.56.19mm (2.21in)
Warmest monthJuly (29.94ºC / 85.89ºF)
Coldest MonthJanuary (-1.77ºC / 28.81ºF)
Wettest MonthAugust (82.74mm / 3.26in)
Driest MonthJanuary (33.82mm / 1.33in)
Number of days with rainfall (≥ 1.0 mm)47.91 days (13.13%)
Days with no rain317.09000000000003 days (86.87%)
Humidity73.09%

Climate Hartly: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)19.0(66.2)24.0(75.2)23.0(73.4)27.0(80.6)32.0(89.6)34.0(93.2)35.0(95.0)34.0(93.2)35.0(95.0)33.0(91.4)23.0(73.4)18.0(64.4)35.0(95.0)
Average high °C (°F)4.98(40.96)8.32(46.98)10.39(50.7)16.28(61.3)22.32(72.18)26.76(80.17)29.94(85.89)28.73(83.71)25.32(77.58)19.27(66.69)11.63(52.93)7.38(45.28)17.61(63.7)
Daily mean °C (°F)2.47(36.45)5.53(41.95)7.33(45.19)13.01(55.42)19.25(66.65)23.82(74.88)27.02(80.64)25.8(78.44)22.41(72.34)16.47(61.65)8.92(48.06)5.05(41.09)14.76(58.57)
Average low °C (°F)-1.77(28.81)1.12(34.02)2.49(36.48)7.52(45.54)13.56(56.41)18.13(64.63)21.34(70.41)21.05(69.89)17.81(64.06)11.99(53.58)4.76(40.57)1.53(34.75)9.96(49.93)
Record low °C (°F)-16.0(3.2)-12.0(10.4)-7.0(19.4)-1.0(30.2)3.0(37.4)10.0(50.0)14.0(57.2)16.0(60.8)9.0(48.2)2.0(35.6)-5.0(23.0)-6.0(21.2)-16.0(3.2)
Average precipitation mm (inches)33.82(1.33)51.52(2.03)46.01(1.81)40.12(1.58)59.35(2.34)64.89(2.55)76.86(3.03)82.74(3.26)53.96(2.12)50.8(2.0)48.95(1.93)65.31(2.57)56.19(2.21)
Average precipitation days (≥ 1.0 mm)2.643.913.273.365.275.05.185.914.553.552.452.823.99
Average relative humidity (%)69.3471.2768.2866.7975.5273.9775.6779.1778.1774.5969.9274.3573.09
Mean monthly sunshine hours7.768.579.729.5912.0913.2613.3210.3810.059.417.476.489.84

Climate Graph

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

Hartly

Hartly Temperature by Month

July
27.02°C | 80.64°F
August
25.8°C | 78.44°F
June
23.82°C | 74.88°F
September
22.41°C | 72.34°F
May
19.25°C | 66.65°F
October
16.47°C | 61.65°F
April
13.01°C | 55.42°F
November
8.92°C | 48.06°F
March
7.33°C | 45.19°F
February
5.53°C | 41.95°F
December
5.05°C | 41.09°F
January
2.47°C | 36.45°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature16.0°C (60.8°F)4.48°C (40.06°F)-7.0°C (19.4°F)
Avg Temperature13.0°C (55.4°F)2.0°C (35.6°F)-9.0°C (15.8°F)
Min Temperature7.0°C (44.6°F)-2.16°C (28.11°F)-13.0°C (8.6°F)
Dew PointMaxAverageMin
Dew Point8.0°C (46.4°F)-4.58°C (23.76°F)-23.0°C (-9.4°F)
PrecipitationMaxAverageMinSum
Precipitation41.3mm | 1.63in4.84mm | 0.19in0.0mm | 0in150.1mm | 5.91in
Snowdepth9.5mm | 0.37in0.64mm | 0.03in0.0mm | 0in19.700000000000003mm | 0.78in
WindMaxAverageMin
Wind29.0kmh | 18.02mph13.55kmh | 8.42mph5.0kmh | 3.11mph
Gust Wind53.0kmh | 32.93mph27.03kmh | 16.8mph8.0kmh | 4.97mph
Sea Level PressureMaxAverageMin
Sea Level Pressure41.3mb4.84mb0.0mb
Hartly

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
January° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-01-0113 | 55.48 | 46.47520 | 12.4329.94 | 10146.7 | 0.26
2019-01-026 | 42.81 | 33.8739 | 5.5930.24 | 10240.0 | 0.0
2019-01-037 | 44.62 | 35.6778 | 4.9730.0 | 10162.4 | 0.09
2019-01-046 | 42.82 | 35.6778 | 4.9729.97 | 10150.2 | 0.01
2019-01-058 | 46.46 | 42.89015 | 9.3229.59 | 100215.0 | 0.59
2019-01-067 | 44.61 | 33.86913 | 8.0830.06 | 10180.0 | 0.0
2019-01-071 | 33.8-7 | 19.45610 | 6.2130.42 | 10300.0 | 0.0
2019-01-087 | 44.65 | 41.09011 | 6.8429.97 | 10153.2 | 0.13
2019-01-095 | 41.0-2 | 28.46221 | 13.0529.74 | 10071.9 | 0.07
2019-01-101 | 33.8-9 | 15.85119 | 11.8129.91 | 10130.0 | 0.0
2019-01-11-1 | 30.2-13 | 8.64011 | 6.8430.3 | 10260.0 | 0.0
2019-01-12-0 | 32.0-13 | 8.6435 | 3.1130.5 | 10331.0 | 0.04
2019-01-13-2 | 28.4-4 | 24.88913 | 8.0830.36 | 102815.4 | 0.61
2019-01-14-3 | 26.6-7 | 19.47711 | 6.8430.24 | 10240.6 | 0.02
2019-01-15-1 | 30.2-5 | 23.0799 | 5.5930.18 | 10220.0 | 0.0
2019-01-161 | 33.8-3 | 26.68210 | 6.2130.18 | 10220.0 | 0.0
2019-01-17-1 | 30.2-5 | 23.0756 | 3.7330.33 | 10270.4 | 0.02
2019-01-182 | 35.60 | 32.0935 | 3.1130.15 | 10213.9 | 0.15
2019-01-192 | 35.60 | 32.08811 | 6.8430.12 | 10206.4 | 0.25
2019-01-203 | 37.40 | 32.08226 | 16.1629.59 | 100230.2 | 1.19
2019-01-21-9 | 15.8-19 | -2.24629 | 18.0230.27 | 10250.0 | 0.0
2019-01-22-4 | 24.8-18 | -0.43710 | 6.2130.65 | 10380.0 | 0.0
2019-01-235 | 41.0-1 | 30.26920 | 12.4330.27 | 10250.0 | 0.0
2019-01-2411 | 51.88 | 46.48522 | 13.6729.68 | 100541.3 | 1.63
2019-01-252 | 35.6-7 | 19.45817 | 10.5630.09 | 10190.0 | 0.0
2019-01-261 | 33.8-10 | 14.0487 | 4.3530.24 | 10240.0 | 0.0
2019-01-275 | 41.0-3 | 26.66711 | 6.8430.09 | 10190.0 | 0.0
2019-01-28-1 | 30.2-10 | 14.0499 | 5.5930.06 | 10180.0 | 0.0
2019-01-294 | 39.2-3 | 26.67112 | 7.4629.88 | 101217.1 | 0.67
2019-01-30-4 | 24.8-13 | 8.64925 | 15.5330.03 | 10174.4 | 0.17
2019-01-31-9 | 15.8-23 | -9.43417 | 10.5630.39 | 10290.0 | 0.0

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