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 |
|---|---|---|---|
| -2°C | 91mm | 5.1hrs | 10.4hrs |
January in Lewiston is generally a little damp with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often relatively 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 freezing -2°C (29°F), whilst at night -12°C (10°F) is normal.
On average January is the driest month of the year in Lewiston with around 91mm 3.6 inches of rain making it a a little damp 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 5.1 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| -0°C | 88mm | 5.9hrs | 11.5hrs |
February in Lewiston is generally a little damp with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often relatively 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 freezing -0°C (32°F), whilst at night -11°C (12°F) is normal.
On average February is the 2nd driest month of the year in Lewiston with around 88mm 3.4 inches of rain making it a a little damp 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 5.9 hours of sunshine per day.
Lewiston weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 5°C | 106mm | 6.4hrs | 12.8hrs |
The weather in March in Lewiston is characteristically cool and damp.
Based on weather alone, this is probably a time of year to avoid going to Lewiston for your holidays. The weather is often relatively 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 cold 5°C (41°F), whilst at night -5°C (23°F) is normal.
On average March is the 3rd driest month of the year in Lewiston with around 106mm 4.2 inches of rain making it a damp 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 6.4 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 10°C | 103mm | 7.1hrs | 14.4hrs |
Lewiston's weather in April is typically cool and damp in nature.
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.
April is in the spring in Lewiston and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night 1°C (34°F) is normal.
On average April is the 4th driest month of the year in Lewiston with around 103mm 4.1 inches of rain making it a damp 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 7.1 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 93mm | 8hrs | 15.8hrs |
May is a a little damp month in Lewiston and the temperature is generally mild.
It is perhaps a good month to visit Lewiston, with some inordinately 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 a cool 19°C (65°F), whilst at night 7°C (44°F) is normal.
On average May is the 5th driest month of the year in Lewiston with around 93mm 3.6 inches of rain making it a a little damp 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 8 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 21°C | 92mm | 8.8hrs | 10.4hrs |
June in Lewiston is generally a little damp with the temperature being mild.
It is perhaps the perfect month to visit Lewiston, with some inordinately 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 24°C (75°F), whilst at night 12°C (54°F) is normal.
On average June is the 6th driest month of the year in Lewiston with around 92mm 3.6 inches of rain making it a a little damp 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 8.8 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 86mm | 9.3hrs | 11.5hrs |
July in Lewiston is generally a little damp with the temperature being warm.
It is perhaps the perfect month to visit Lewiston, with some surprisingly 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 muggy 27°C (80°F), whilst at night 15°C (60°F) is normal.
On average July is the 6th wettest month of the year in Lewiston with around 86mm 3.4 inches of rain making it a a little damp 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 9.3 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 23°C | 83mm | 8.7hrs | 12.8hrs |
The weather in August in Lewiston is characteristically warm, humid and a little damp.
It is perhaps the perfect month to visit Lewiston, with some inordinately 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 muggy 26°C (78°F), whilst at night 15°C (58°F) is normal.
On average August is the 5th wettest month of the year in Lewiston with around 83mm 3.3 inches of rain making it a a little damp 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 8.7 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 19°C | 80mm | 7.5hrs | 14.4hrs |
Lewiston's weather in September is typically mild and a little damp in nature.
It is perhaps the perfect month to visit Lewiston, with some inordinately 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 21°C (70°F), whilst at night 10°C (50°F) is normal.
On average September is the 4th wettest month of the year in Lewiston with around 80mm 3.1 inches of rain making it a a little damp 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 7.5 hours of sunshine per day.
Lewiston weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 13°C | 99mm | 6.2hrs | 15.8hrs |
October is a a little damp month in Lewiston and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Lewiston.
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 15°C (59°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 99mm 3.9 inches of rain making it a a little damp 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 6.2 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 7°C | 127mm | 4.4hrs | 10.4hrs |
November in Lewiston is generally wet 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 relatively bad 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 8°C (46°F), whilst at night -1°C (30°F) is normal.
On average November is the 2nd wettest month of the year in Lewiston with around 127mm 5 inches of rain making it a wet 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 4.4 hours of sunshine per day.
Lewiston weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 0°C | 116mm | 4.3hrs | 11.5hrs |
December in Lewiston is generally damp with the temperature being cold.
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 freezing 1°C (33°F), whilst at night -8°C (17°F) is normal.
On average December is the wettest month of the year in Lewiston with around 116mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.3 hours of sunshine per day.
Other monthly averages
Lewiston weather stats
| Hottest month: | July | 26.5°C 79.7°F |
|---|---|---|
| Driest month: | September | 80mm 3.1ins |
| Sunniest month: | August | 8.7hrs |
| Coldest month: | January | -1.9°C 28.6°F |
| Wettest month: | November | 127mm 5ins |
| Warmest sea: | August | 16.9°C 62.4°F |
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