January is one of the cooler months of the year in Bay Shore, with average highs near 4.1°C and lows around -0.3°C (mean 1.9°C). It is about average for rainfall, averaging 106 mm of rainfall and 81% relative humidity across the period.
January is one of the cooler months of the year in Bay Shore. Across 45 years of records, the warmest January in Bay Shore was 2023 — when the month averaged 5.9°C — while the coldest was 1981 at -2.1°C. Typical January days reach 4.1°C with nights near -0.3°C. The long-term trend is warming, about 0.4°C per decade.
January is about average for rainfall in Bay Shore, averaging 106 mm of rainfall. The wettest January on record was 2024 with 201 mm, while the driest was 1981 at 23 mm.
Relative humidity in Bay Shore during January averages 81%. The most humid January was 1994 at 86%, and the least humid was 2025 at 76%.
January receives about 1.8 kWh/m²/day of solar energy in Bay Shore. The sunniest January was 2025 at 2.2 kWh/m²/day, and the cloudiest was 1984 at 1.3.
Average wind speed in Bay Shore during January is 6.4 m/s. The windiest Januarys were 1997, 2000 and 2004 at 7.4 m/s, while the calmest were 1984 and 2001 at 5.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 0.6°C | 2.5°C | 1.9°C | 1.8°C | 3.2°C | +2.6°C |
| Avg High | 2.8°C | 4.8°C | 4.0°C | 4.1°C | 5.2°C | +2.4°C |
| Avg Low | -1.6°C | 0.2°C | -0.3°C | -0.4°C | 1.1°C | +2.7°C |
| Avg Rain | 93 mm | 116 mm | 85 mm | 125 mm | 115 mm | +22 mm |
January temperatures in Bay Shore have risen by about 3.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -13.1°C (1994) to a record high of 14.3°C (2007).
Rainfall in January is about average for rainfall, averaging 106 mm, with a wettest year of 201 mm.
A quieter season to visit Bay Shore
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Bay Shore. That said, January — with days averaging 4.1°C and nights around -0.3°C (mean 1.9°C) and higher rainfall (106 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2.8°C | 1.1°C | -0.7°C | 10.0°C | -6.5°C | 26 mm | 76% | 7 m/s | 2.2 |
| 2024 🌧️ | 5.2°C | 3.3°C | 1.4°C | 13.8°C | -5.3°C | 201 mm | 81% | 6.1 m/s | 1.6 |
| 2023 🔥 | 7.8°C | 5.9°C | 4.0°C | 11.8°C | 0.5°C | 171 mm | 84% | 5.4 m/s | 1.6 |
| 2022 | 4.0°C | 1.4°C | -1.3°C | 11.3°C | -7.8°C | 118 mm | 79% | 6.6 m/s | 1.9 |
| 2021 | 4.8°C | 2.9°C | 1.0°C | 10.1°C | -7.6°C | 77 mm | 80% | 6.3 m/s | 2 |
| 2020 | 6.4°C | 4.3°C | 2.3°C | 13.9°C | -4.0°C | 94 mm | 80% | 5.9 m/s | 2 |
| 2019 | 4.0°C | 1.5°C | -1.0°C | 12.8°C | -11.3°C | 176 mm | 79% | 6.6 m/s | 1.9 |
| 2018 | 3.1°C | 0.7°C | -1.8°C | 12.2°C | -11.9°C | 186 mm | 85% | 6.6 m/s | 2 |
| 2017 | 5.8°C | 4.1°C | 2.4°C | 11.0°C | -6.0°C | 178 mm | 82% | 6 m/s | 1.6 |
| 2016 | 5.2°C | 3.0°C | 0.8°C | 14.0°C | -5.6°C | 125 mm | 78% | 6.6 m/s | 2.1 |
| 2015 | 2.7°C | 0.3°C | -2.1°C | 11.1°C | -9.6°C | 185 mm | 81% | 7.1 m/s | 1.9 |
| 2014 | 2.9°C | 0.3°C | -2.4°C | 11.4°C | -10.9°C | 91 mm | 84% | 6.4 m/s | 1.8 |
| 2013 | 4.8°C | 2.9°C | 1.0°C | 13.5°C | -7.1°C | 69 mm | 82% | 6 m/s | 1.9 |
| 2012 | 7.0°C | 4.4°C | 1.7°C | 12.2°C | -5.7°C | 75 mm | 80% | 6.5 m/s | 2.1 |
| 2011 | 2.0°C | 0.1°C | -1.8°C | 7.5°C | -9.5°C | 108 mm | 80% | 5.8 m/s | 1.9 |
| 2010 | 3.1°C | 1.1°C | -0.8°C | 12.3°C | -6.9°C | 59 mm | 81% | 6.4 m/s | 2 |
| 2009 | 2.4°C | 0.2°C | -2.1°C | 9.3°C | -8.5°C | 90 mm | 79% | 6.1 m/s | 1.9 |
| 2008 | 4.9°C | 2.8°C | 0.8°C | 12.3°C | -7.5°C | 69 mm | 78% | 6.2 m/s | 2 |
| 2007 | 6.3°C | 4.1°C | 1.9°C | 14.3°C | -9.3°C | 107 mm | 80% | 6.4 m/s | 1.8 |
| 2006 | 7.0°C | 4.8°C | 2.5°C | 13.8°C | -6.5°C | 135 mm | 84% | 6.4 m/s | 1.8 |
| 2005 | 3.6°C | 1.3°C | -1.0°C | 11.3°C | -9.8°C | 104 mm | 85% | 6.3 m/s | 1.6 |
| 2004 | 0.5°C | -1.8°C | -4.1°C | 8.9°C | -12.4°C | 48 mm | 84% | 7.4 m/s | 1.8 |
| 2003 | 1.9°C | -0.3°C | -2.4°C | 8.5°C | -9.3°C | 67 mm | 82% | 7.1 m/s | 1.8 |
| 2002 | 6.8°C | 5.0°C | 3.1°C | 11.9°C | -2.0°C | 67 mm | 79% | 6 m/s | 1.8 |
| 2001 | 3.2°C | 1.4°C | -0.3°C | 8.3°C | -5.4°C | 88 mm | 81% | 5.3 m/s | 1.9 |
| 2000 | 3.7°C | 1.2°C | -1.4°C | 12.8°C | -10.9°C | 75 mm | 82% | 7.4 m/s | 2 |
| 1999 | 5.4°C | 2.7°C | 0.1°C | 12.6°C | -7.1°C | 197 mm | 82% | 6.5 m/s | 1.8 |
| 1998 | 6.4°C | 4.6°C | 2.8°C | 12.6°C | -5.6°C | 156 mm | 84% | 6.1 m/s | 1.8 |
| 1997 | 4.3°C | 1.7°C | -0.9°C | 10.1°C | -10.3°C | 87 mm | 81% | 7.4 m/s | 1.8 |
| 1996 | 3.5°C | 0.9°C | -1.8°C | 12.1°C | -10.3°C | 133 mm | 85% | 6.8 m/s | 1.5 |
| 1995 | 5.6°C | 3.9°C | 2.1°C | 11.6°C | -5.2°C | 72 mm | 82% | 6.6 m/s | 2.1 |
| 1994 | 1.8°C | -1.2°C | -4.2°C | 9.3°C | -13.1°C | 141 mm | 86% | 6.8 m/s | 1.7 |
| 1993 | 5.1°C | 3.1°C | 1.2°C | 12.4°C | -3.4°C | 70 mm | 80% | 6.3 m/s | 1.6 |
| 1992 | 4.8°C | 2.5°C | 0.2°C | 11.4°C | -6.9°C | 58 mm | 78% | 6.4 m/s | 1.8 |
| 1991 | 5.0°C | 2.8°C | 0.5°C | 10.2°C | -8.7°C | 114 mm | 80% | 6 m/s | 1.9 |
| 1990 | 5.7°C | 3.8°C | 1.9°C | 10.0°C | -2.6°C | 134 mm | 85% | 5.6 m/s | 1.8 |
| 1989 | 5.4°C | 3.2°C | 0.9°C | 8.8°C | -8.7°C | 56 mm | 79% | 6 m/s | 1.9 |
| 1988 | 2.6°C | 0.6°C | -1.4°C | 8.1°C | -11.5°C | 95 mm | 81% | 5.9 m/s | 2 |
| 1987 | 3.5°C | 1.5°C | -0.5°C | 8.9°C | -8.0°C | 176 mm | 82% | 6.8 m/s | 1.6 |
| 1986 | 4.2°C | 1.8°C | -0.6°C | 10.3°C | -9.7°C | 110 mm | 80% | 6.8 m/s | 2 |
| 1985 | 1.9°C | -0.3°C | -2.5°C | 11.6°C | -12.7°C | 40 mm | 80% | 7.1 m/s | 2 |
| 1984 | 2.1°C | 0.1°C | -1.9°C | 8.1°C | -9.7°C | 69 mm | 84% | 5.3 m/s | 1.3 |
| 1983 | 4.7°C | 2.6°C | 0.6°C | 13.1°C | -9.2°C | 120 mm | 80% | 6.2 m/s | — |
| 1982 | 0.9°C | -1.9°C | -4.6°C | 13.1°C | -12.7°C | 145 mm | 85% | 7.3 m/s | — |
| 1981 ❄️ | 0.3°C | -2.1°C | -4.6°C | 5.8°C | -11.7°C | 23 mm | 82% | 6.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 4.1°C with lows near -0.3°C (mean 1.9°C), based on 45 years of NASA POWER data.
January averages 106 mm of rainfall in Bay Shore, about average for rainfall. The wettest on record was 201 mm in 2024.
The hottest January reached 14.3°C in 2007. The coldest dipped to -13.1°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 3.2°C. Daytime highs moved from 2°C to 4.9°C and overnight lows from -2.6°C to 0.9°C over the same span.
January is one of the cooler months of the year in Bay Shore and about average for rainfall, so plan for around 4.1°C daytime highs and -0.3°C at night.
Yes — January is the coldest month of the year in Bay Shore, averaging 1.9°C.
For January in Bay Shore, pack warm layers and a jacket for chilly mornings, with typical highs of 4.1°C and lows of -0.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 81% — quite humid.
Average wind speed in January is 6.4 m/s. The windiest January on record averaged 7.4 m/s (1997).
The wettest January on record was 2024 with 201 mm. On average, January sees 106 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Bay Shore behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
