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Climate in Bethlehem · NOAA 1991–2020 normals

Summers, winters and rain in Bethlehem all run close to those of most U.S. towns

Nights in January average 29°. Only 59° separates winter nights from summer afternoons. By January nights alone, it runs milder than 71% of U.S. towns. Homes need heating from November to March, the months averaging under 50°.

Milder January nights than 71% of U.S. towns#229Mildest winters  of 287 in NC
Wetter than 70% of U.S. towns#158 wettest of 287 in NC
All NC rankings →

A year in Bethlehem at a glance

Each month’s typical high and low, and what it brings.

Jan50°29°
Feb54°31°
Mar61°38° Last frost ~Mar 31
Apr71°46°
May78°54° 1 day 90°+
Jun85°63° 7 days 90°+
Jul88°67° 13 days 90°+
Aug86°66° 8 days 90°+Wettest
Sep81°59° 3 days 90°+
Oct71°47°
Nov now61°37° First frost ~Nov 4
Dec53°31°

What stands out about Bethlehem’s climate

Compared with towns across the U.S., with Bethlehem’s place in North Carolina beside it.

A normal year

What a year in Bethlehem feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
52° / 30°
Snow is rare
Spring
70° / 46°
Last frost around Mar 31
Summer
86° / 65°
33 days reach 90°
Fall
71° / 48°
First frost around Nov 4
Best months to be outsideAprMaySepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 219 frost-free days a year

In half of years the last 32° night comes by March 31 and the first by November 4. Frost and day counts come from NOAA’s station at Hickory Faa Airport, 7 miles from the town’s center, 110 ft higher.

69
nights at or below 32° in a normal year
142nd fewest of 287 in North Carolina
Fewer freezing nights than 73% of U.S. towns
0
nights at or below 0°
None in a normal year
33
days that reach 90°
224th most of 287 in North Carolina
More 90° days than 65% of U.S. towns
<1
days that reach 100°
199th most of 287 in North Carolina
More 100° days than 52% of U.S. towns
8aUSDA zone
Plant hardiness zone 8a

The 2023 USDA map puts Bethlehem’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 11°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

19
JFMAMJJASOND

90° days by month

Average days at 90° or more

13
JFMAMJJASOND
Rain & snow

About 47 inches of rain a year

August is the wettest month and February the driest. Rain falls on about 117 days a year. Snow is rare: about 0.3" in a normal year at Rhodhiss Hydro Plt, NC, so most winters see none.

47"
Rain + melted snow a year
158th wettest of 287 in North Carolina
Wetter than 70% of U.S. towns
0.3"
Snow in a normal winter
Less snow than 82% of U.S. towns

Rain + melted snow by month

Inches of water

4.5"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Bethlehem

72% of the work is heating. Months averaging under 55° run from November through March.

3,548 heating degree daysLess heating than 74% of U.S. towns
1,395 cooling degree daysMore cooling than 71% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Hickory Faa Airport.

Living here

Living with Bethlehem’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

219 frost-free days in zone 8a. The last frost comes by Mar 31 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 4.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, September and October. 0.0 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Bethlehem from natural hazards, river flooding is the largest share (70%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Bethlehem and its neighbors

Every town next door is within a degree of Bethlehem in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Hickory: January low 29°, July high 88°Conover: January low 29°, July high 88°St. Stephens: January low 29°, July high 88°Bethlehem: January low 29°, July high 88°BethlehemSt. Stephens
ColderMilder29° to 29°
Bethlehem28.7°
St. Stephens29.1° about the same

Climates most like Bethlehem’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Bethlehem, NC29°88°47"0.3"
Emporia, VA29°90°48"1.4"
Fort Campbell North, KY28°89°53"0.5"
Pleasant View, TN28°89°52"1.3"
Cedartown, GA32°89°51"0.4"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Bethlehem averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.8°).

+0.9°1991–2020 vs. 1901–2000

A smaller shift than in 87% of U.S. towns.

Winter+1.3°now 41°, was 40°
Spring+0.8°now 58°, was 57°
Summer+0.8°now 76°, was 75°
Fall+0.5°now 59°, was 59°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Bethlehem compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Bethlehem’s place among North Carolina’s.

Summer heat88° July high
Hotter July afternoons than 67% of U.S. towns229th hottest of 287 in North Carolina
Winter cold29° January low
Milder January nights than 71% of U.S. towns229th mildest of 287 in North Carolina
Precipitation47" a year
Wetter than 70% of U.S. towns158th wettest of 287 in North Carolina
Snow0.3" a winter
Less snow than 82% of U.S. townsNot ranked: under an inch a year
Hot days33 days at 90°+
More 90° days than 65% of U.S. towns224th most of 287 in North Carolina
Freezing nights69 a year
Fewer freezing nights than 73% of U.S. towns142nd fewest of 287 in North Carolina
Growing season219 frost-free days
A longer frost-free season than 79% of U.S. towns159th longest of 287 in North Carolina
Month by month

Bethlehem weather by month

Highs, lows and precipitation from NOAA’s grid at Bethlehem’s center; snow, wet days and snow on the ground from Rhodhiss Hydro Plt, NC. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January50°29°3.8"0.0"10033° – 45°
February54°31°3.2"0.0"9034° – 50°
March61°38°4.1"0.0"11043° – 58°
April71°46°4.0"0.0"10054° – 62°
May78°54°4.0"0.0"11061° – 70°
June85°63°4.5"0.0"11070° – 78°
July88°67°4.2"0.0"12074° – 81°
August86°66°4.5"0.0"11073° – 82°
September81°59°3.8"0.0"9067° – 75°
October71°47°3.5"0.0"7056° – 64°
November61°37°3.4"0.0"8044° – 54°
December53°31°3.9"0.3"9032° – 51°
Year70°47°47.0"0.3"1170
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 32° to 51°. July is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Bethlehem’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Bethlehem’s center.
  • Snow: Rhodhiss Hydro Plt, NC.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Hickory Faa Airport, 7 miles from the town’s center, 110 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Bethlehem’s climate

What is the weather like in Bethlehem?

A typical July afternoon reaches 88°, a January night drops to 29°, and snow is almost unheard of. Milder January nights than 71% of U.S. towns; hotter July afternoons than 67% of U.S. towns.

How cold does it get in Bethlehem in winter?

January nights average 29°. About 69 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 33°.

How much snow does Bethlehem get?

About 0.3 inches in a normal winter at Rhodhiss Hydro Plt, NC, so most winters see none.

How hot does it get in Bethlehem?

July, with a typical high of 88° and a low of 67°. About 33 days a year reach 90° (Hickory Faa Airport).

When is the first and last frost in Bethlehem?

In half of years the last spring frost (32°) comes by March 31 and the first fall frost by November 4, about 219 frost-free days, at Hickory Faa Airport.

What growing zone is Bethlehem in?

Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 11°.

What is the best time of year to visit Bethlehem?

By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Bethlehem getting warmer?

Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 87% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Bethlehem.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.