Climateby Month

Lewiston, ME weather in October

NOAA 1991-2020 normals and daily records · Lewiston all year

Expect cool weather with frequent rain in Lewiston in October, with highs near 58°F and lows near 36°F. Rain falls on about 12 days.

Normal high
58°F
Normal low
36°F
Wet days
12
5.4 in total
Muggy days
0
dew point 65°F+

How October changes from start to finish

Normal values at the start and end of October
October 1October 31
Normal high64°F52°F
Normal low41°F31°F
Chance of a wet day36%40%
Sunrise / sunset6:38 am / 6:22 pm7:16 am / 5:32 pm
Daylight11.7 h10.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical October day

  1. 6 am44°Fdew point 40°F
  2. 9 am49°Fdew point 41°F
  3. Noon55°Fdew point 40°F
  4. 3 pm56°Fdew point 39°F
  5. 6 pm51°Fdew point 40°F
  6. 9 pm48°Fdew point 41°F

NOAA hourly normals (local standard time) from Augusta State Airport (26 mi away); average wind 7 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F7 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow12 of 31
  • Notable rainat least 0.10 in8 of 31
  • Freezing nightslow 32°F or below12 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per October, counted from daily records for each year 1991-2020.

Rain and snow in October

Normal precipitation is 5.4 in; a dry October brings about 3.3 in and a wet one about 6.5 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more. Normal snowfall is 0.3 in.

How October varies from year to year

  • Warmest October, 1991-20201995: average high 65°F
  • Coolest October2009: average high 53°F
  • Wettest October2005: 14.5 in
  • Driest October1994: 0.8 in
  • Highest reading85°F (October 11, 2018)
  • Lowest reading18°F (October 31, 2020)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

October compared with September and November

SeptemberOctoberNovember
Normal high70°F58°F46°F
Normal low47°F36°F27°F
Wet days101211
Comfortable days1771
Daylight12.5 h11.0 h9.7 h

Highs change by -12°F from September and -12°F into November.

Nearby alternatives in October

How Lewiston ranks in October

  • Normal high343rd warmest of 378 cities; 5th of 5 in Maine
  • Wet days338th driest of 378
  • Comfortable days262nd most of 340

What to pack for Lewiston in October

  • A warm jacket – lows near 36°F, highs near 58°F
  • A rain jacket or umbrella – rain on about 12 days

Frost in October

The first fall frost typically comes around Oct 19; in 1 year in 10 it comes before Oct 5. All frost dates for Lewiston.

Heating and cooling

October has 562 heating degree days and 1 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.

Questions

How cold is Lewiston in October?

The normal high is 58°F and the normal low is 36°F. From 1991 to 2020 the coldest October reading was 18°F (most recently on October 31, 2020).

Does it rain a lot in Lewiston in October?

About 12 days in October have at least 0.01 in of precipitation, and the normal total is 5.4 in. The wettest October in 1991-2020 was in 2005 (14.5 in); the driest was in 1994 (0.8 in).

Does it snow in Lewiston in October?

Yes. Normal snowfall in October is 0.3 in.

Is October a good time to visit Lewiston?

October ranks 7th of 12 months on our comfort score for Lewiston (53 out of 100). It has about 7 comfortable days. The best months are May, June and September.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Durham (USC00172048), 9.1 mi SE of the city center, 140 ft (78 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Lewiston (USC00174566), 0.1 mi WSW of the city center, 180 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Augusta State Airport (USW00014605), 26 mi NE of the city center, 350 ft (132 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Augusta State Airport (726185-14605), 26 mi NE of the city center, 349 ft (131 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).