When is the best time to go to Lewiston
The chart above shows the best time of year to visit Lewiston, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Lewiston
Lewiston weather by month
Please note our recommendations for when to visit Lewiston are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 41mm | 2.8hrs | 10.2hrs |
The climate in Lewiston during January can be summarized as cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
January is in the winter in Lewiston and is typically the coldest month of the year. Daytime maximum temperatures average around a cold 4°C (39°F), whilst at night -3°C (26°F) is normal.
On average January is the driest month of the year in Lewiston with around 41mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.8 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 7°C | 29mm | 4.2hrs | 11.4hrs |
February in Lewiston is generally dry with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Lewiston and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -1°C (30°F) is normal.
On average February is the 2nd driest month of the year in Lewiston with around 29mm 1.2 inches of rain making it a dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.2 hours of sunshine per day.
Lewiston weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 10°C | 34mm | 6.6hrs | 12.9hrs |
The weather in March in Lewiston is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Lewiston and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 1°C (33°F) is normal.
On average March is the 3rd driest month of the year in Lewiston with around 34mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 14°C | 33mm | 8.2hrs | 14.6hrs |
Lewiston's weather in April is typically cool and reasonably dry in nature.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Lewiston.
April is in the spring in Lewiston and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 3°C (38°F) is normal.
On average April is the 4th driest month of the year in Lewiston with around 33mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 19°C | 37mm | 9.8hrs | 16.1hrs |
May is a reasonably dry month in Lewiston and the temperature is generally mild.
It is perhaps a good month to visit Lewiston, with some particularly good weather at this time of year.
May is in the spring in Lewiston and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 7°C (45°F) is normal.
On average May is the 5th driest month of the year in Lewiston with around 37mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.8 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 23°C | 35mm | 11.1hrs | 10.2hrs |
Warm and reasonably dry weather often prevails in Lewiston during the month of June
It is perhaps a good month to visit Lewiston, with some very good weather at this time of year.
June is in the summer in Lewiston and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 26°C (78°F), whilst at night 11°C (52°F) is normal.
On average June is the 6th driest month of the year in Lewiston with around 35mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.1 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 17mm | 14.5hrs | 11.4hrs |
July in Lewiston is generally dry with the temperature being warm.
It is perhaps the perfect month to visit Lewiston, with some extremely good weather at this time of year.
July is in the summer in Lewiston and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 13°C (56°F) is normal.
On average July is the 6th wettest month of the year in Lewiston with around 17mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 14.5 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 21mm | 13hrs | 12.9hrs |
The weather in August in Lewiston is characteristically warm and dry.
It is perhaps the perfect month to visit Lewiston, with some particularly good weather at this time of year.
August is in the summer in Lewiston and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (87°F), whilst at night 13°C (56°F) is normal.
On average August is the 5th wettest month of the year in Lewiston with around 21mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 13 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 21mm | 10.1hrs | 14.6hrs |
Lewiston's weather in September is typically mild and dry in nature.
It is perhaps the perfect month to visit Lewiston, with some extremely good weather at this time of year.
September is in the fall / autumn in Lewiston and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 9°C (48°F) is normal.
On average September is the 4th wettest month of the year in Lewiston with around 21mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.1 hours of sunshine per day.
Lewiston weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 15°C | 29mm | 7hrs | 16.1hrs |
October is a dry month in Lewiston and the temperature is generally mild.
It is perhaps a good month to visit Lewiston, with some surprisingly good weather at this time of year.
October is in the fall / autumn in Lewiston and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 4°C (40°F) is normal.
On average October is the 3rd wettest month of the year in Lewiston with around 29mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 8°C | 39mm | 3.2hrs | 10.2hrs |
November is a reasonably dry month in Lewiston and the temperature is generally cool.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often not a good and not conducive to spending time outdoors.
November is in the fall / autumn in Lewiston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 9°C (47°F), whilst at night 1°C (33°F) is normal.
On average November is the 2nd wettest month of the year in Lewiston with around 39mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.2 hours of sunshine per day.
Lewiston weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 4°C | 40mm | 2.5hrs | 11.4hrs |
December in Lewiston is generally reasonably dry with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often not a good and not conducive to spending time outdoors.
December is in the winter in Lewiston and is typically the warmest month of the year. Daytime maximum temperatures average around a cold 4°C (39°F), whilst at night -3°C (27°F) is normal.
On average December is the wettest month of the year in Lewiston with around 40mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.5 hours of sunshine per day.
Other monthly averages
Lewiston weather stats
| Hottest month: | July | 30.5°C 86.9°F |
|---|---|---|
| Driest month: | July | 17mm 0.7ins |
| Sunniest month: | July | 14.5hrs |
| Coldest month: | January | 3.4°C 38.1°F |
| Wettest month: | January | 41mm 1.6ins |
| Warmest sea: | August | 13.7°C 56.7°F |
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