Fitchburg weather in August

In August, Fitchburg sees average daytime highs of 80°F and overnight lows near 62°F, with 3.8 in of rain across 10.4 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 78°F by the end. The sky is clear or mostly clear about 31% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Fitchburg's 3rd-clearest and 12th-windiest month. For the whole year in context, see Fitchburg's year-round climate.

Daytime high
80°
2nd warmest
Overnight low
62°
11th coldest
Rainfall
3.8 in
10.4 wet days
Daylight
13 h 42 min
4:59 AM – 6:44 PM
Cloud cover
58%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.21 kWh/m²
Travel score
6.6
out of 10

Fitchburg is city in Worcester County, Massachusetts, United States.

Density
557/km²
people per km²
Founded
1730

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 81°F in the first days to 78°F by the end.

A typical August day in Fitchburg reaches about 80°F in the afternoon and slips back to 62°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 88°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18164
28164
38164
48164
58163
68163
78163
88163
98063
108063
118063
128063
138062
148062
158062
168062
177962
187962
197962
207961
217961
227961
237961
247861
257860
267860
277860
287860
297860
307759
317759

How August really feels in Fitchburg

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Fitchburg weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan33° / 19°3.49.86.69.20.0
Feb36° / 20°3.18.7610.30.0
Mar44° / 28°4.211.15.711.60.7
Apr56° / 38°3.811.31.613.13.6
May67° / 48°3.411.30.114.45.8
Jun76° / 58°4.011.7015.16.4
Jul82° / 64°3.810.9014.86.2
Aug80° / 62°3.810.4013.76.6
Sep72° / 54°3.78.5012.36.9
Oct60° / 44°3.99.80.410.84.9
Nov48° / 34°3.59.51.49.61.9
Dec38° / 25°4.310.45.88.90.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
34951
44852
54852
64852
74753
84753
94753
104654
114654
124654
134654
144654
154654
164753
174852
184852
195050
205050
215149
225248
235248
245347
255347
265347
275347
285347
295446
305446
315446

Chance of precipitation in August

Any precipitation

Fitchburg gets around 3.8 in of rain over 10.4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
637
737
837
938
1038
1137
1237
1337
1437
1536
1636
1735
1835
1934
2033
2132
2231
2330
2429
2529
2628
2727
2827
2927
3026
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1202328226
2212328226
3212328226
4212427226
5212427226
6212427216
7222428216
8222428216
9222427215
10222527215
11232527215
12232527204
13232627204
14242626204
15242726203
16242826203
17242825193
18252825192
19262925192
20272924192
21282923182
22292923182
23302922172
24322821172
25332821162
26342820162
27352820152
28362819152
29372819142
30382819142
31382819142

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 4:43 AM to 5:15 AM, and sunset from 7:04 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:437:04
214.34:447:03
314.34:457:01
414.24:467:00
514.24:476:59
614.24:486:58
714.14:496:56
814.14:506:55
914.04:516:54
1014.04:526:52
1114.04:536:51
1213.94:556:50
1313.94:566:48
1413.84:576:47
1513.84:586:45
1613.74:596:44
1713.75:006:42
1813.75:016:41
1913.65:026:39
2013.65:036:38
2113.55:046:36
2213.55:056:34
2313.45:076:33
2413.45:086:31
2513.35:096:29
2613.35:106:28
2713.35:116:26
2813.25:126:24
2913.25:136:23
3013.15:146:21
3113.15:156:19

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.21 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 5.89 kWh/m² in July across the year — August's 5.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Fitchburg?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.6
Sightseeing
2nd-best month of the year
6.4
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Fitchburg for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fitchburg in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Fitchburg sees daytime highs around 80°F and nights near 62°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Fitchburg in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fitchburg peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 10UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Fitchburg?

Fitchburg sits at 42.6°N, 71.8°W, 466 ft above sea level, in United States. The nearest listed city is Leominster, 4.3 mi away.

Topography around Fitchburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Fitchburg.

Within 2 miles, the terrain around Fitchburg has only modest variations in elevation — a maximum elevation change of 699 ft around an average of 630 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,798 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,176 ft.

The land around Fitchburg is covered by trees (71%) and artificial surfaces (21%) within 2 miles, trees (86%) within 10 miles, and trees (88%) within 50 miles.

2 miles
699 ft
10 miles
1,798 ft
50 miles
3,176 ft
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Leominster 4.3 mi · Gardner 9.9 mi · Holden 16 mi · Westford 19 mi · Acton 20 mi · Shrewsbury 21 mi · Marlborough 21 mi · Nashua 21 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Fitchburg (42.5834°, -71.8023°, elevation 466 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).