United States Minor Outlying Islands Climatic Classifications

CodeDescriptionGroupNumber of states/regionsStates/regions
AfTropical rainforestTropical8 Baker Island Howland Island Jarvis Island Johnston Atoll Kingman Reef Navassa Island Palmyra Atoll Wake Island
AmTropical monsoonTropical1 Midway Islands

Summary: Most regions (8) in United States Minor Outlying Islands lie in the Tropical rainforest climate zone (Köppen: Af). The mean average of annual temperatures range from a high of 27.96°C (82.33°F) in Kingman Reef to a low of 0.0°C (0°F) in Howland Island.

Climate United States Minor Outlying Islands: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)28.54(83.37)28.49(83.28)28.33(82.99)28.53(83.35)28.81(83.86)29.53(85.15)29.59(85.26)29.78(85.6)29.49(85.08)28.8(83.84)28.25(82.85)28.35(83.03)29.78(85.6)
Average high °C (°F)25.97(78.75)25.67(78.21)25.8(78.44)26.3(79.34)26.89(80.4)27.79(82.02)28.06(82.51)28.27(82.89)28.18(82.72)27.68(81.82)26.93(80.47)26.37(79.47)26.99(80.58)
Daily mean °C (°F)25.24(77.43)24.92(76.86)25.12(77.22)25.66(78.19)26.29(79.32)27.17(80.91)27.45(81.41)27.6(81.68)27.52(81.54)27.04(80.67)26.28(79.3)25.69(78.24)26.33(79.39)
Average low °C (°F)23.96(75.13)23.55(74.39)23.77(74.79)24.31(75.76)25.06(77.11)25.99(78.78)26.25(79.25)26.3(79.34)26.27(79.29)25.84(78.51)25.08(77.14)24.5(76.1)25.07(77.13)
Record low °C (°F)18.97(66.15)17.77(63.99)18.42(65.16)19.15(66.47)20.69(69.24)23.82(74.88)24.62(76.32)24.37(75.87)23.85(74.93)23.07(73.53)21.75(71.15)20.6(69.08)17.77(63.99)
Average precipitation mm (inches)177.06(6.97)162.53(6.4)207.47(8.17)200.32(7.89)225.94(8.9)209.75(8.26)221.05(8.7)221.21(8.71)195.61(7.7)191.92(7.56)185.34(7.3)173.19(6.82)197.62(7.78)
Average precipitation days (≥ 1.0 mm)15.715.6619.2719.3218.2317.0419.1318.4617.4417.316.5214.7217.4
Average relative humidity (%)77.8677.9179.4679.8479.6278.8677.9477.4877.0177.1577.3777.6878.18
Mean monthly sunshine hours9.210.0110.3410.4310.9911.7711.611.1310.6310.299.629.3710.45

United States Minor Outlying Islands Climate Graph

United States Minor Outlying Islands

United States Minor Outlying Islands’s Cities by Temperature

United States Minor Outlying Islands’s states/regions ranking by average yearly temperature:

Kingman Reef
27.96°C | 82.33°F
Palmyra Atoll
27.96°C | 82.33°F
Wake Island
26.86°C | 80.35°F
Jarvis Island
26.69°C | 80.04°F
Johnston Atoll
26.18°C | 79.12°F
Navassa Island
26.0°C | 78.8°F
Midway Islands
22.67°C | 72.81°F
Howland Island
0.0°C | 0°F
Baker Island
0.0°C | 0°F

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