Johnston

What is the climate like in Johnston?

Johnston is warmest in July, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 16°F (-9°C). The wettest month is typically May and the driest is February; the year sees roughly 37 in of precipitation.

• Warmest monthJuly — average high 86°F (30°C)
• Coolest monthJanuary — average low 16°F (-9°C)
• Wettest monthMay (5.9 in)
• Driest monthFebruary (1.3 in)
• Annual precipitation37 in