Weather in Johnstown in May

General weather information about Johnstown

Average annual temperature is 8.9 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: -30.0 °C

Number of sunny days: 120 days

Number of rainy days: 200 days

Number of snow days: 45 days

Look at detailed online map of Johnstown

* Weather data for Johnstown Canada is based on climate observations for 2026 year

Johnstown air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	6.0	14.4	8.8	26.8	31.4	33.3	32.4	27.0	32.0	29.0	16.2	10.7
Average daytime temperature (°C)	0.3	1.9	3.5	14.5	19.4	24.3	27.0	23.7	22.8	16.0	6.6	3.9
Average temperature (°C)	-3.0	-4.2	-0.5	8.0	12.6	18.3	21.9	19.4	17.8	12.3	2.7	0.7
Average night temperature (°C)	-5.7	-9.2	-4.2	2.7	6.4	13.2	17.8	15.8	13.9	9.4	-0.4	-1.9
Absolute minimum temperature (°C)	-13.7	-30.0	-11.1	-7.8	0.3	7.7	13.0	10.7	8.3	-0.9	-6.5	-9.3

Johnstown monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.2	10.4	11.9	13.5	14.8	15.5	15.2	14.0	12.5	11.0	9.6	8.9
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	2.9	5.2	5.8	8.1	11.3	9.9	11.1	10.1	9.7	5.4	5.2	2.5
Precipitation (mm)	121	80	76	92	89	119	150	129	44	111	43	128
Sunny days	6	6	10	12	20	8	4	4	19	10	11	10
Rainy days	11	10	12	17	11	22	27	27	11	21	14	17
Snow days	14	12	9	1	0	0	0	0	0	0	5	4

Johnstown - weather forecast by months

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Best time to visit Johnstown:

The best time to visit Johnstown during the most sunny months:

May — 11.3(h)
June — 9.9(h)
July — 11.1(h)
August — 10.1(h)
September — 9.7(h)

Months with the longest average daylight duration in Johnstown:

June — 15.5(h)

The largest precipitation sum in Johnstown is at

July — 150(mm)

August — 129(mm)

December — 128(mm)

Weather forecast in the closest to Johnstown admin centers