PlainClimate
NOAA 1991–2020 normals 42°F annual avg Public-domain federal data

Mackay Lost Rvr RS, ID Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

42°F
Avg annual temp
34/100
Comfort score
9.9"
Annual precip
111d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Mackay Lost Rvr RS

Mackay Lost Rvr RS, Idaho averages 42°F a year and scores 34/100 on the comfort index - below average, milder than 1% of U.S. cities.

42°F
annual average temperature (NOAA normal)
34/100
comfort score, milder than 1% of U.S. cities
9.9"
precipitation, annual total
111 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

42°F (6°C)

Avg High

55°F

Avg Low

29°F

Annual Precip

9.9"

Comfort Score

34/100

Below Average

Climate Comfort Score

34/100

Below Average

Avg Annual Temperature

42°F

30-year mean (NOAA NCEI)

Annual Precipitation

9.9"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Mackay Lost Rvr RS) 34.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Mackay Lost Rvr RS area.

How Mackay Lost Rvr RS compares to every U.S. city

Mackay Lost Rvr RS's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

34 Top 99% higher than 1% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). This entry sits in this band. 40–50: 1,302 US cities (19%). Above this entry. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Mackay Lost Rvr RS

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Mackay Lost Rvr RS captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 30°F (-1°C) 8°F (-13°C) 19°F (-7°C)
February 34°F (1°C) 12°F (-11°C) 23°F (-5°C)
March 44°F (7°C) 22°F (-6°C) 33°F (0°C)
April 55°F (13°C) 29°F (-2°C) 42°F (5°C)
May 65°F (18°C) 37°F (3°C) 51°F (10°C)
June 73°F (23°C) 43°F (6°C) 58°F (14°C)
July 83°F (29°C) 50°F (10°C) 67°F (19°C)
August 82°F (28°C) 48°F (9°C) 65°F (18°C)
September 72°F (22°C) 40°F (5°C) 56°F (13°C)
October 58°F (14°C) 31°F (-1°C) 44°F (7°C)
November 41°F (5°C) 19°F (-7°C) 30°F (-1°C)
December 29°F (-2°C) 10°F (-12°C) 19°F (-7°C)

Monthly Precipitation

Average monthly rainfall

January 0.8"

6.0 days with precipitation

February 0.5"

5.5 days with precipitation

March 0.7"

5.4 days with precipitation

April 0.9"

6.8 days with precipitation

May 1.2"

7.9 days with precipitation

June 1.4"

7.0 days with precipitation

July 0.7"

4.5 days with precipitation

August 0.7"

5.4 days with precipitation

September 0.8"

4.5 days with precipitation

October 0.8"

5.3 days with precipitation

November 0.5"

5.5 days with precipitation

December 0.9"

7.1 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 20

50% probability date

Last Spring Freeze

June 1

50% probability date

Growing Season

111 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

8,438

Higher = more heating needed

Cooling Degree Days

171

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Mackay Lost Rvr RS's climate means for you

Mackay Lost Rvr RS runs 42°F a year - peaking in July, coldest in January.

  • Gardeners get about 111 frost-free days, with the last spring freeze near June 1 - plan the planting calendar around it, not the regional average.
  • Energy bills track 8,438 heating and 171 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Mackay Lost Rvr RS, ID

In Mackay Lost Rvr RS, Idaho, the NOAA 1991–2020 climate normals put the annual average temperature at 42°F, ranging from a mean daily high of 55°F to a mean daily low of 29°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00105462, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Beyond temperature, Mackay Lost Rvr RS averages 9.9 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 111 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 1 and the first fall freeze near September 20. Turning to energy use, 8,438 heating degree days and 171 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Mackay Lost Rvr RS scores 34/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Mackay Lost Rvr RS, ID?
The average annual temperature in Mackay Lost Rvr RS, Idaho is 42°F. The warmest month averages 83°F (29°C) and the coldest averages 8°F (-13°C).
How much rain does Mackay Lost Rvr RS get?
Mackay Lost Rvr RS receives 9.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Mackay Lost Rvr RS?
Mackay Lost Rvr RS has a climate comfort score of 34/100 (Below Average), milder than 1% of U.S. cities in the PlainClimate database.
When is the growing season in Mackay Lost Rvr RS?
Mackay Lost Rvr RS has approximately 111 frost-free days per year, with the last spring freeze around June 1 and the first fall freeze around September 20.
How much energy does heating and cooling require in Mackay Lost Rvr RS?
Mackay Lost Rvr RS has 8,438 heating degree days and 171 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Mackay Lost Rvr RS climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00105462 near Mackay Lost Rvr RS.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00105462. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.