Grantham, Saint Mary, Jamaica Climate

Weather: 31.17°C/88.11°F, Wind SW at 2.36 km/h, 58% Humidity, 0% Chance of rain

Jamaica
(Photo by JJ Shev on Unsplash)
Contents

Grantham Climate Summary

Located at an elevation of 225.64 meters (740.29 feet) above sea level, Grantham has a Tropical wet and dry or savanna climate (Classification: Aw). The district’s yearly temperature is 27.97ºC (82.35ºF) and it is 1.14% higher than Jamaica’s averages. Grantham typically receives about 107.6 millimeters (4.24 inches) of precipitation and has 210.34 rainy days (57.63% of the time) annually.

CountryJamaica
CitySaint Mary
Longitude-76.8821849
Latitude18.1160743
Attitude/Elevation225.64m (740.29ft)
Local timeSunday 06:20
Annual high temperature29.29ºC (84.72ºF)
Annual low temperature25.96ºC (78.73ºF)
Average annual precip.107.6mm (4.24in)
Warmest monthAugust (31.04ºC / 87.87ºF)
Coldest MonthFebruary (24.22ºC / 75.6ºF)
Wettest MonthOctober (211.51mm / 8.33in)
Driest MonthFebruary (53.08mm / 2.09in)
Number of days with rainfall (≥ 1.0 mm)210.34 days (57.63%)
Days with no rain154.66 days (42.37%)
Humidity80.43%

Climate Grantham: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)31.03(87.85)30.0(86.0)31.03(87.85)32.07(89.73)32.07(89.73)32.07(89.73)33.1(91.58)33.1(91.58)33.1(91.58)32.07(89.73)31.03(87.85)31.03(87.85)33.1(91.58)
Average high °C (°F)27.56(81.61)27.68(81.82)27.64(81.75)28.77(83.79)29.5(85.1)30.34(86.61)30.66(87.19)31.04(87.87)31.02(87.84)30.37(86.67)28.9(84.02)28.05(82.49)29.29(84.72)
Daily mean °C (°F)26.23(79.21)26.27(79.29)26.33(79.39)27.44(81.39)28.2(82.76)29.07(84.33)29.34(84.81)29.59(85.26)29.66(85.39)29.05(84.29)27.68(81.82)26.83(80.29)27.97(82.35)
Average low °C (°F)24.32(75.78)24.22(75.6)24.22(75.6)25.25(77.45)26.15(79.07)26.86(80.35)27.16(80.89)27.52(81.54)27.66(81.79)27.16(80.89)25.93(78.67)25.08(77.14)25.96(78.73)
Record low °C (°F)18.62(65.52)18.62(65.52)18.62(65.52)20.69(69.24)22.76(72.97)24.83(76.69)24.83(76.69)22.76(72.97)24.83(76.69)19.65(67.37)17.58(63.64)19.65(67.37)17.58(63.64)
Average precipitation mm (inches)68.79(2.71)53.08(2.09)57.26(2.25)79.35(3.12)142.02(5.59)87.87(3.46)92.32(3.63)102.19(4.02)178.18(7.01)211.51(8.33)134.41(5.29)84.16(3.31)107.6(4.24)
Average precipitation days (≥ 1.0 mm)13.4512.5114.8517.420.8712.8816.7420.523.1324.7318.5314.7617.53
Average relative humidity (%)80.7580.3479.8880.380.7181.1780.5279.7779.580.0981.0881.1280.43
Mean monthly sunshine hours8.7111.1911.1912.8613.213.2713.2312.9712.669.558.378.3411.3

Climate Graph

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

Grantham

Grantham Temperature by Month

September
29.66°C | 85.39°F
August
29.59°C | 85.26°F
July
29.34°C | 84.81°F
June
29.07°C | 84.33°F
October
29.05°C | 84.29°F
May
28.2°C | 82.76°F
November
27.68°C | 81.82°F
April
27.44°C | 81.39°F
December
26.83°C | 80.29°F
March
26.33°C | 79.39°F
February
26.27°C | 79.29°F
January
26.23°C | 79.21°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature31.03°C (87.85°F)28.17°C (82.71°F)25.86°C (78.55°F)
Avg Temperature28.96°C (84.13°F)26.89°C (80.4°F)24.83°C (76.69°F)
Min Temperature26.89°C (80.4°F)25.0°C (77.0°F)22.76°C (72.97°F)
Dew PointMaxAverageMin
Dew Point24.83°C (76.69°F)22.97°C (73.35°F)20.69°C (69.24°F)
PrecipitationMaxAverageMinSum
Precipitation29.48mm | 1.16in4.81mm | 0.19in0.0mm | 0in144.4mm | 5.69in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind21.72kmh | 13.5mph14.21kmh | 8.83mph5.17kmh | 3.21mph
Gust Wind32.07kmh | 19.93mph20.45kmh | 12.71mph8.28kmh | 5.14mph
Sea Level PressureMaxAverageMin
Sea Level Pressure29.48mb4.81mb0.0mb
Grantham

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
April° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2010-04-0125.86 | 78.5522.76 | 72.978614.48 | 9.030.97 | 1048.885.9 | 0.23
2010-04-0224.83 | 76.6921.72 | 71.18516.55 | 10.2830.94 | 1047.854.76 | 0.19
2010-04-0325.86 | 78.5520.69 | 69.247618.62 | 11.5730.94 | 1047.850.0 | 0
2010-04-0425.86 | 78.5520.69 | 69.247619.65 | 12.2130.97 | 1048.880.0 | 0
2010-04-0525.86 | 78.5520.69 | 69.247521.72 | 13.531.0 | 1049.920.21 | 0.01
2010-04-0625.86 | 78.5520.69 | 69.247520.69 | 12.8630.97 | 1048.880.1 | 0.0
2010-04-0726.89 | 80.421.72 | 71.17818.62 | 11.5730.97 | 1048.880.93 | 0.04
2010-04-0826.89 | 80.422.76 | 72.978115.52 | 9.6430.94 | 1047.854.24 | 0.17
2010-04-0927.93 | 82.2722.76 | 72.978212.41 | 7.7131.0 | 1049.920.62 | 0.02
2010-04-1026.89 | 80.421.72 | 71.17514.48 | 9.031.03 | 1050.950.52 | 0.02
2010-04-1126.89 | 80.422.76 | 72.978016.55 | 10.2830.97 | 1048.884.76 | 0.19
2010-04-1225.86 | 78.5522.76 | 72.978411.38 | 7.0730.91 | 1046.815.79 | 0.23
2010-04-1325.86 | 78.5522.76 | 72.97869.31 | 5.7830.91 | 1046.816.52 | 0.26
2010-04-1425.86 | 78.5522.76 | 72.978414.48 | 9.030.97 | 1048.884.76 | 0.19
2010-04-1524.83 | 76.6921.72 | 71.18618.62 | 11.5730.97 | 1048.8815.0 | 0.59
2010-04-1624.83 | 76.6922.76 | 72.978821.72 | 13.530.97 | 1048.8829.48 | 1.16
2010-04-1725.86 | 78.5523.79 | 74.828913.45 | 8.3630.94 | 1047.8523.17 | 0.91
2010-04-1826.89 | 80.424.83 | 76.69896.21 | 3.8630.94 | 1047.8518.72 | 0.74
2010-04-1927.93 | 82.2724.83 | 76.69855.17 | 3.2130.94 | 1047.857.03 | 0.28
2010-04-2027.93 | 82.2723.79 | 74.82839.31 | 5.7830.91 | 1046.812.59 | 0.1
2010-04-2126.89 | 80.421.72 | 71.1797.24 | 4.530.91 | 1046.810.0 | 0
2010-04-2227.93 | 82.2722.76 | 72.977810.34 | 6.4230.91 | 1046.810.0 | 0
2010-04-2327.93 | 82.2723.79 | 74.828215.52 | 9.6430.94 | 1047.850.0 | 0
2010-04-2427.93 | 82.2724.83 | 76.698717.58 | 10.9230.94 | 1047.851.45 | 0.06
2010-04-2527.93 | 82.2724.83 | 76.698615.52 | 9.6430.91 | 1046.811.55 | 0.06
2010-04-2628.96 | 84.1324.83 | 76.698310.34 | 6.4230.88 | 1045.780.41 | 0.02
2010-04-2728.96 | 84.1324.83 | 76.698211.38 | 7.0730.91 | 1046.811.34 | 0.05
2010-04-2828.96 | 84.1324.83 | 76.698310.34 | 6.4230.97 | 1048.882.79 | 0.11
2010-04-2927.93 | 82.2723.79 | 74.828212.41 | 7.7131.0 | 1049.920.1 | 0.0
2010-04-3027.93 | 82.2723.79 | 74.828116.55 | 10.2831.0 | 1049.921.66 | 0.07

Grantham 11 Year Historical Weather Data

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