What’s the climate like in Johnstone?
The current climate of Johnstone features average monthly temperatures ranging from highs of 37°C during the day to lows of 19°C. The average yearly temperature is around 29°C. At night, temperatures in the colder months average around 4°C and in the warmer months around 24°C.
The highest temperature recorded in Johnstone in recent years was 44°C in June 2023. The lowest daytime temperature recorded was -2°C in February 2021.
On average, Johnstone gets 950 mm of precipitation each year. Of this, about 3,2 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
The hurricane season in Johnstone runs from June to November.
Best time to visit Johnstone?
The best time to visit Johnstone for sunny weather is January through May, October and November. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Johnstone. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Johnstone
The climate table of Johnstone shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 19 | 21 | 25 | 29 | 32 | 36 | 37 | 37 | 33 | 29 | 22 | 20 |
| Temp. min (°C) | 5 | 7 | 13 | 16 | 20 | 24 | 25 | 25 | 22 | 17 | 11 | 7 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 9,0 | 20 | 31 | 62 | 96 | 123 | 35 | 95 | 214 | 77 | 60 | 128 |
| Snow (cm) | 0 | 3,2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| UV Index | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 7 | 5 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 29°C
- Highest temperature: 37°C in July and August
- Lowest temperature: 19°C in January
- Precipitation*: 950 mm per year, averaging 79 mm per month
- Snowfall: 3,2 cm per year
- Driest months: 9,0 mm in January, 20 mm in February and 31 mm in March
- Wettest months: 214 mm in September, 128 mm in December and 123 mm in June
*Precipitation is measured as a combination of rain, snow, and hail
Table of Contents
Average Temperature per Month in Johnstone
This graph shows the average maximum temperatures per month in Johnstone, Texas. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Johnstone
This graph shows how much precipitation Johnstone, Texas, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Johnstone
This graph shows how much snow Johnstone, Texas, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Johnstone
This graph shows the average UV index per month in Johnstone, Texas. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Johnstone
This graph shows the average yearly temperature in Johnstone, Texas. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Johnstone
This chart shows the total yearly precipitation in Johnstone, Texas, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Johnstone
This chart shows the total yearly snowfall in Johnstone, Texas, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Johnstone
Have you been to Johnstone?
Share your weather experiences in Johnstone.
Average Weather in Johnstone by Month
Click on a month below to see detailed weather info for Johnstone. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
