What’s the climate like in Allentown?
The current climate of Allentown features average monthly temperatures ranging from highs of 30°C during the day to lows of 4°C. The average yearly temperature is around 18°C. At night, temperatures in the colder months average around -4°C and in the warmer months around 19°C.
The highest temperature recorded in Allentown in recent years was 37°C in July 2018. The lowest daytime temperature recorded was -13°C in January 2014.
On average, Allentown gets 1162 mm of precipitation each year. Of this, about 62 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Allentown?
The best time to visit Allentown for sunny weather is June, July, September and October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Allentown. 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 Allentown
The climate table of Allentown 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) | 4 | 6 | 10 | 17 | 22 | 27 | 30 | 29 | 25 | 19 | 12 | 7 |
| Temp. min (°C) | -4 | -3 | 1 | 6 | 12 | 17 | 20 | 19 | 15 | 9 | 2 | 0 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 69 | 114 | 60 | 77 | 143 | 110 | 97 | 162 | 90 | 72 | 89 | 79 |
| Snow (cm) | 14 | 31 | 9,4 | 0,5 | 0 | 0 | 0 | 0 | 0 | 0 | 1,6 | 5,0 |
| UV Index | 1 | 2 | 2 | 4 | 3 | 6 | 3 | 6 | 3 | 3 | 1 | 2 |
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: 18°C
- Highest temperature: 30°C in July
- Lowest temperature: 4°C in January
- Precipitation*: 1162 mm per year, averaging 97 mm per month
- Snowfall: 62 cm per year
- Driest months: 60 mm in March, 69 mm in January and 72 mm in October
- Wettest months: 162 mm in August, 143 mm in May and 114 mm in February
*Precipitation is measured as a combination of rain, snow, and hail
Plan your next holiday
Don’t miss the best holiday deals for Allentown and see what our partners have for you.
Table of Contents
Average Temperature per Month in Allentown
This graph shows the average maximum temperatures per month in Allentown, Pennsylvania. 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 Allentown
This graph shows how much precipitation Allentown, Pennsylvania, 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 Allentown
This graph shows how much snow Allentown, Pennsylvania, 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 Allentown
This graph shows the average UV index per month in Allentown, Pennsylvania. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Allentown
This graph shows the average yearly temperature in Allentown, Pennsylvania. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Allentown
This chart shows the total yearly precipitation in Allentown, Pennsylvania, 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 Allentown
This chart shows the total yearly snowfall in Allentown, Pennsylvania, 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 Allentown
Have you been to Allentown?
Share your weather experiences in Allentown.
Average Weather in Allentown by Month
Click on a month below to see detailed weather info for Allentown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
