Solarposition.org

Missouri · United States · 38.83° N · 90.29° W

Solar position in Old Jamestown

Sun position, daylight and the best solar panel angle for Old Jamestown — computed for 38.83° N, 90.29° W, 173 m above sea level.

Sunrise today07:19105° ESE
Sunset today18:10255° WSW
Best panel angle34°year-round, facing south
Off-grid angle62°best for the darkest month

The sun right now

Azimuth180.0°
Elevation39.2°
At solar noon, 12:45Open on the sun map

Sun in Old Jamestown today

Saturday, 24 October 2026 · local time UTC−5

EventTimeDirection / height
Astronomical dawn05:50sun 18° below horizon
Nautical dawn06:2112° below
Civil dawn06:526° below
Sunrise07:19105° ESE
Golden hour ends07:56sun 6° up
Solar noon12:4539.2° high
Golden hour starts17:33sun 6° up
Sunset18:10255° WSW
Civil dusk18:376° below
Nautical dusk19:0812° below
Astronomical dusk19:3918° below
Day length10 h 50 min

Sun path diagram for Old Jamestown

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice67891011121314151617181920EquinoxDecember solstice8910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 74.6° at solar noon in Old Jamestown; on the December solstice only 27.8°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:1512:1217:109 h 55 min31.4°
February06:4412:1417:4511 h 01 min40.8°
March07:0213:0819:1412 h 11 min51.6°
April06:1612:5919:4413 h 28 min63.2°
May05:4312:5720:1214 h 28 min71.5°
June05:3613:0320:2914 h 54 min74.6°
July05:5313:0720:2114 h 29 min71.5°
August06:2013:0419:4713 h 27 min63.1°
September06:4812:5318:5912 h 12 min51.7°
October07:1612:4518:1410 h 57 min40.3°
November06:5011:4616:439 h 53 min31.2°
December07:1511:5916:429 h 27 min27.8°

A year of daylight in Old Jamestown

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Old Jamestown

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

34°collects the most energy over a year: 1441 kWh per kWp.

62°gives the most in the darkest month — the one an off-grid system is sized for.

50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 34°Best worst-month 62°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°123786%1.453.6×
15°137796%2.022.5×
30°1439100%2.462.0×
34° year-round best1441100%2.561.8×
39° = latitude1435100%2.661.7×
45°141798%2.761.6×
60°131591%2.881.4×
62° off-grid best129690%2.881.4×
70°120684%2.861.3×
90°91063%2.581.9×

A fixed array in Old Jamestown produces the most over a year at 34°. The design month for an off-grid system is December: at 62° it makes 2.88 kWh per kWp a day, 13% more than at 34°, and costs 10% of the yearly total. Why steep panels win winter.

Off-grid solar in Old Jamestown at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 34° (year-round best).

012345January: 3.27 (70°)3.3JanFebruary: 3.52 (70°)3.5FebMarch: 3.44 (70°)3.4MarApril: 3.39 (70°)3.4AprMay: 2.97 (70°)3.0MayJune: 2.91 (70°)2.9JunJuly: 2.99 (70°)3.0JulAugust: 3.27 (70°)3.3AugSeptember: 3.80 (70°)3.8SepOctober: 3.77 (70°)3.8OctNovember: 3.48 (70°)3.5NovDecember: 2.86 (70°)2.9Dec34°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 34°Mean temp.
January snow2.053.603.272.92-1.7 °C
February snow2.793.903.523.440.0 °C
March3.753.913.443.906.4 °C
April5.003.963.394.4712.9 °C
May5.613.562.974.4418.3 °C
June6.413.562.914.7223.4 °C
July6.313.682.994.7025.7 °C
August5.594.003.274.5624.9 °C
September4.754.563.804.5320.8 °C
October3.394.393.773.9013.4 °C
November2.363.943.483.236.6 °C
December1.773.182.862.560.8 °C
Year4.15 avg3.85 avg1206 kWh1441 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 410 Wp of panels at 70°, versus 460 Wp at 34°. The steep array is 10% smaller for the same winter. Size your own system.

Row spacing in Old Jamestown

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.

4.8 mrow pitch at 70°

4.1 mrow pitch at 34°

Row spacing calculator

How Old Jamestown 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.

1603rdof 3,121 places in the United States for sunshine, shared: 4.15 peak sun hours a day on flat ground.

−5%solar energy a year compared with the average place in the United States: 1,441 against 1,515 kWh per kWp.

−12 mindaylight on the longest day, compared with New York City: 14 h 54 min against 15 h 06 min.

34°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); Old Jamestown ranks joint 1603rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.86 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 9 h 27 min, +11 min compared with New York City.

The sunniest places in the United States

Solar forecast for Old Jamestown, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Old Jamestown

What is the best solar panel angle in Old Jamestown?
For a fixed array facing south, the best year-round tilt in Old Jamestown is 34°, worth about 1441 kWh per kWp a year. An off-grid system that has to get through December does better at about 62°.
What time is sunrise and sunset in Old Jamestown today?
On 24 October 2026 the sun rises at 07:19 and sets at 18:10 local time (UTC−5), giving 10 h 50 min of daylight. Solar noon is at 12:45.
How many peak sun hours does Old Jamestown get?
On a flat surface 4.2 hours a day averaged over the year, from 1.8 in December to 6.4 in June. Panels tilted at 70° receive 3.2 sun hours a day in December.
How high does the sun get in Old Jamestown?
At solar noon the sun stands 74.6° above the horizon on the June solstice and 27.8° on the December solstice.
Is Old Jamestown a good place for solar panels?
With 4.2 peak sun hours a day on flat ground, Old Jamestown ranks joint 1603rd of 3,121 places in the United States for sunshine. A 1 kWp array at the best angle (34°) makes about 1,441 kWh a year here, 5% less than the average place in the United States.

Places near Old Jamestown

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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.