What’s the climate like in Waltham?
The current climate of Waltham features average monthly temperatures ranging from highs of 29°C during the day to lows of 3°C. The average yearly temperature is around 17°C. At night, temperatures in the colder months average around -5°C and in the warmer months around 18°C.
The highest temperature recorded in Waltham in recent years was 37°C in July 2022. The lowest daytime temperature recorded was -14°C in January 2019.
On average, Waltham gets 1711 mm of precipitation each year. Of this, about 119 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Waltham?
The best time to visit Waltham for sunny weather is May, June, August and September. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Waltham. 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 Waltham
The climate table of Waltham 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 | |
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| Temp. max (°C) | 3 | 5 | 8 | 14 | 20 | 26 | 29 | 28 | 24 | 18 | 12 | 6 |
| Temp. min (°C) | -5 | -5 | -1 | 5 | 10 | 15 | 19 | 18 | 14 | 8 | 2 | -2 |
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| Precipitation (mm) | 134 | 109 | 148 | 151 | 102 | 105 | 188 | 117 | 110 | 232 | 153 | 162 |
| Snow (cm) | 44 | 38 | 22 | 2,2 | 0 | 0 | 0 | 0 | 0 | 1,2 | 0,8 | 11 |
| UV Index | 2 | 3 | 4 | 4 | 6 | 5 | 6 | 5 | 4 | 3 | 2 | 1 |
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: 17°C
- Highest temperature: 29°C in July
- Lowest temperature: 3°C in January
- Precipitation*: 1711 mm per year, averaging 143 mm per month
- Snowfall: 119 cm per year
- Driest months: 102 mm in May, 105 mm in June and 109 mm in February
- Wettest months: 232 mm in October, 188 mm in July and 162 mm in December
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Waltham
This graph shows the average maximum temperatures per month in Waltham, Massachusetts. 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 Waltham
This graph shows how much precipitation Waltham, Massachusetts, 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 Waltham
This graph shows how much snow Waltham, Massachusetts, 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 Waltham
This graph shows the average UV index per month in Waltham, Massachusetts. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Waltham
This graph shows the average yearly temperature in Waltham, Massachusetts. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Waltham
This chart shows the total yearly precipitation in Waltham, Massachusetts, 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 Waltham
This chart shows the total yearly snowfall in Waltham, Massachusetts, 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 Waltham
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Average Weather in Waltham by Month
Click on a month below to see detailed weather info for Waltham. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
