Illinois · United States · 42.17° N · 88.43° W
Solar position in Huntley
Sun position, daylight and the best solar panel angle for Huntley — computed for 42.17° N, 88.43° W, 271 m above sea level.
The sun right now
Sun in Huntley today
Saturday, 24 October 2026 · local time UTC−5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:43 | sun 18° below horizon |
| Nautical dawn | 06:15 | 12° below |
| Civil dawn | 06:48 | 6° below |
| Sunrise | 07:17 | 105° ESE |
| Golden hour ends | 07:56 | sun 6° up |
| Solar noon | 12:37 | 35.9° high |
| Golden hour starts | 17:19 | sun 6° up |
| Sunset | 17:58 | 254° WSW |
| Civil dusk | 18:26 | 6° below |
| Nautical dusk | 18:59 | 12° below |
| Astronomical dusk | 19:31 | 18° below |
| Day length | 10 h 41 min | |
Sun path diagram for Huntley
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 71.3° at solar noon in Huntley; on the December solstice only 24.4°. Sunrise swings from 57° ENE in June to 122° ESE in December — a 65° arc along the horizon.
Sunrise, sunset and sun height by month
Values for the 21st of each month, local clock time including daylight saving time.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:16 | 12:05 | 16:54 | 9 h 38 min | 28.1° |
| February | 06:41 | 12:07 | 17:34 | 10 h 53 min | 37.5° |
| March | 06:55 | 13:01 | 19:07 | 12 h 12 min | 48.3° |
| April | 06:03 | 12:52 | 19:41 | 13 h 38 min | 59.9° |
| May | 05:27 | 12:50 | 20:13 | 14 h 47 min | 68.1° |
| June | 05:17 | 12:55 | 20:33 | 15 h 16 min | 71.3° |
| July | 05:36 | 13:00 | 20:23 | 14 h 47 min | 68.2° |
| August | 06:07 | 12:56 | 19:45 | 13 h 37 min | 59.8° |
| September | 06:40 | 12:46 | 18:52 | 12 h 12 min | 48.3° |
| October | 07:13 | 12:38 | 18:02 | 10 h 49 min | 37.0° |
| November | 06:51 | 11:39 | 16:27 | 9 h 36 min | 27.8° |
| December | 07:18 | 11:51 | 16:24 | 9 h 06 min | 24.4° |
A year of daylight in Huntley
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Huntley
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
36°collects the most energy over a year: 1384 kWh per kWp.
72°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1163 | 84% | 1.15 | 4.3× |
| 15° | 1307 | 94% | 1.67 | 3.0× |
| 30° | 1377 | 100% | 2.11 | 2.3× |
| 36° year-round best | 1384 | 100% | 2.26 | 2.1× |
| 42° = latitude | 1378 | 100% | 2.38 | 1.9× |
| 45° | 1370 | 99% | 2.44 | 1.8× |
| 60° | 1287 | 93% | 2.63 | 1.6× |
| 70° | 1192 | 86% | 2.68 | 1.4× |
| 72° off-grid best | 1170 | 85% | 2.68 | 1.4× |
| 90° | 926 | 67% | 2.57 | 1.9× |
A fixed array in Huntley produces the most over a year at 36°. The design month for an off-grid system is December: at 72° it makes 2.68 kWh per kWp a day, 19% more than at 36°, and costs 15% of the yearly total. Why steep panels win winter.
Off-grid solar in Huntley at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 36° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 36° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.69 | 3.26 | 3.00 | 2.59 | -5.8 °C |
| February snow | 2.60 | 4.12 | 3.78 | 3.50 | -4.4 °C |
| March | 3.60 | 3.99 | 3.57 | 3.94 | 2.1 °C |
| April | 4.71 | 3.95 | 3.44 | 4.37 | 8.4 °C |
| May | 5.45 | 3.67 | 3.11 | 4.44 | 14.5 °C |
| June | 6.13 | 3.66 | 3.03 | 4.63 | 20.2 °C |
| July | 6.23 | 3.88 | 3.19 | 4.75 | 23.0 °C |
| August | 5.40 | 4.11 | 3.39 | 4.54 | 22.2 °C |
| September | 4.39 | 4.48 | 3.77 | 4.36 | 18.2 °C |
| October | 2.88 | 3.85 | 3.34 | 3.41 | 10.6 °C |
| November | 1.91 | 3.29 | 2.93 | 2.71 | 3.7 °C |
| December snow | 1.41 | 2.94 | 2.68 | 2.26 | -2.7 °C |
| Year | 3.87 avg | 3.76 avg | 1192 kWh | 1384 kWh |
Sizing example. To run a 1 kWh-per-day load through December on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 440 Wp of panels at 70°, versus 520 Wp at 36°. The steep array is 16% smaller for the same winter. Size your own system.
Row spacing in Huntley
Distance between rows of 2 m long panels (slope length) so that no row shades the next between 10:00 and 14:00 solar time on the winter solstice.
5.5 mrow pitch at 70°
4.6 mrow pitch at 36°
How Huntley compares in the United States
Against the other 3,120 places in the United States with climate data, for a fixed array at its best angle.
2340thof 3,121 places in the United States for sunshine, shared: 3.87 peak sun hours a day on flat ground.
−9%solar energy a year compared with the average place in the United States: 1,384 against 1,515 kWh per kWp.
+10 mindaylight on the longest day, compared with New York City: 15 h 16 min against 15 h 06 min.
36°best year-round tilt here; across the United States it runs from 18° in Honolulu to 53° in Fairbanks.
Of the 3,121 places in the United States, Fortuna Foothills and 2 other places get the most sun (5.96 peak sun hours a day) and Juneau the least (2.38); Huntley ranks joint 2340th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.68 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 9 h 06 min, −9 min compared with New York City.
Solar forecast for Huntley, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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Questions about the sun in Huntley
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Places near Huntley
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A free, live card for Huntley: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
Sun positions: NREL Solar Position Algorithm. Climate: NASA POWER monthly climatology (NASA Langley Research Center). Forecast: Deutscher Wetterdienst, ICON-EU (CC BY 4.0), processed. Places: GeoNames (CC BY 4.0). Time zones: IANA. Sources and licences.