This shows the number of weather stations (both ham and non-ham) sending directly to APRS-IS servers. The information for packets is here.
| Year | Mon | Day | Hour | AMB1 | AMB2 | CWOP-3 | CWOP-4 | CWOP-5 | CWOP-6 | CWOP-7 | 5th | 1st | 4th | 2nd | 6th | 9th | 8th | 3rd | other | Total |
| 2025 | 12 | 06 | 09 | 1558 | 607 | 1712 | 2078 | 2365 | 2125 | 2872 | 27 | 24 | 27 | 33 | 18 | 22 | 41 | 53 | 2258 | 15820 |
| 2025 | 12 | 06 | 08 | 1556 | 606 | 2300 | 2126 | 2333 | 1808 | 2580 | 29 | 34 | 22 | 30 | 22 | 27 | 37 | 44 | 2251 | 15805 |
| 2025 | 12 | 06 | 07 | 1557 | 605 | 1575 | 1508 | 2855 | 2872 | 2330 | 24 | 22 | 27 | 32 | 27 | 30 | 39 | 50 | 2224 | 15777 |
| 2025 | 12 | 06 | 06 | 1559 | 605 | 2246 | 1991 | 2386 | 2005 | 2499 | 25 | 33 | 32 | 31 | 25 | 23 | 33 | 41 | 2205 | 15739 |
| 2025 | 12 | 06 | 05 | 1558 | 605 | 2164 | 2026 | 2067 | 2868 | 1996 | 21 | 22 | 37 | 23 | 17 | 33 | 41 | 49 | 2191 | 15718 |
| 2025 | 12 | 06 | 04 | 1555 | 605 | 2547 | 1982 | 2301 | 1843 | 2440 | 23 | 30 | 30 | 25 | 25 | 31 | 38 | 40 | 2183 | 15698 |
| 2025 | 12 | 06 | 03 | 1555 | 606 | 2276 | 2078 | 2153 | 2568 | 2027 | 26 | 21 | 32 | 29 | 28 | 31 | 32 | 42 | 2164 | 15668 |
| 2025 | 12 | 06 | 02 | 1556 | 605 | 1969 | 1730 | 2159 | 3086 | 2141 | 20 | 27 | 41 | 29 | 30 | 25 | 31 | 45 | 2139 | 15633 |
| 2025 | 12 | 06 | 01 | 1553 | 605 | 2180 | 1498 | 2434 | 2172 | 2759 | 28 | 28 | 28 | 30 | 18 | 38 | 32 | 39 | 2105 | 15547 |
| 2025 | 12 | 06 | 00 | 1562 | 606 | 2348 | 1953 | 2545 | 2176 | 2239 | 22 | 23 | 40 | 23 | 27 | 39 | 27 | 46 | 2379 | 16055 |
| 2025 | 12 | 05 | 23 | 1561 | 607 | 2081 | 1626 | 2534 | 2941 | 2073 | 29 | 25 | 33 | 40 | 29 | 30 | 24 | 41 | 2373 | 16047 |
| 2025 | 12 | 05 | 22 | 1562 | 607 | 2585 | 2014 | 2007 | 2147 | 2499 | 23 | 30 | 25 | 36 | 29 | 33 | 32 | 40 | 2374 | 16043 |
| 2025 | 12 | 05 | 21 | 1559 | 604 | 2085 | 1785 | 1707 | 2291 | 3381 | 25 | 25 | 34 | 35 | 18 | 31 | 37 | 45 | 2371 | 16033 |
| 2025 | 12 | 05 | 20 | 1557 | 604 | 2107 | 1818 | 2138 | 2654 | 2529 | 17 | 37 | 35 | 29 | 22 | 36 | 29 | 40 | 2370 | 16022 |
| 2025 | 12 | 05 | 19 | 1557 | 605 | 2286 | 1833 | 2458 | 1713 | 2950 | 26 | 27 | 31 | 26 | 23 | 30 | 35 | 42 | 2366 | 16008 |
| 2025 | 12 | 05 | 18 | 1556 | 605 | 1883 | 1691 | 2015 | 2606 | 3041 | 18 | 32 | 31 | 32 | 17 | 35 | 36 | 45 | 2358 | 16001 |
| 2025 | 12 | 05 | 17 | 1557 | 604 | 2190 | 1910 | 2102 | 2113 | 2920 | 23 | 29 | 31 | 27 | 24 | 36 | 29 | 44 | 2350 | 15989 |
| 2025 | 12 | 05 | 16 | 1558 | 604 | 2195 | 1523 | 2659 | 2282 | 2567 | 14 | 30 | 23 | 35 | 27 | 29 | 32 | 52 | 2348 | 15978 |
| 2025 | 12 | 05 | 15 | 1558 | 605 | 1392 | 1765 | 2190 | 3252 | 2621 | 26 | 22 | 30 | 29 | 22 | 37 | 39 | 41 | 2333 | 15962 |
| 2025 | 12 | 05 | 14 | 1555 | 605 | 2488 | 1860 | 2113 | 2045 | 2712 | 22 | 23 | 26 | 25 | 33 | 32 | 31 | 46 | 2332 | 15948 |
| 2025 | 12 | 05 | 13 | 1556 | 604 | 2695 | 1829 | 2289 | 2110 | 2283 | 22 | 34 | 37 | 35 | 19 | 28 | 35 | 36 | 2322 | 15934 |
| 2025 | 12 | 05 | 12 | 1557 | 604 | 2307 | 1929 | 2401 | 1694 | 2871 | 23 | 19 | 33 | 36 | 23 | 41 | 37 | 31 | 2319 | 15925 |
| 2025 | 12 | 05 | 11 | 1557 | 599 | 2036 | 1634 | 2568 | 2476 | 2505 | 21 | 28 | 29 | 31 | 28 | 36 | 26 | 42 | 2277 | 15893 |
| 2025 | 12 | 05 | 10 | 1554 | 599 | 1758 | 1800 | 2119 | 2773 | 2763 | 21 | 28 | 29 | 31 | 28 | 36 | 26 | 42 | 2277 | 15884 |
| 2025 | 12 | 05 | 09 | 1556 | 602 | 2554 | 1946 | 1923 | 2374 | 2386 | 21 | 27 | 28 | 24 | 22 | 33 | 40 | 44 | 2295 | 15875 |
| 2025 | 12 | 05 | 08 | 1558 | 602 | 2177 | 1788 | 2239 | 2417 | 2545 | 28 | 31 | 28 | 32 | 22 | 28 | 30 | 43 | 2281 | 15849 |
| 2025 | 12 | 05 | 07 | 1555 | 603 | 1909 | 2170 | 2020 | 2719 | 2334 | 15 | 29 | 25 | 29 | 21 | 36 | 32 | 46 | 2282 | 15825 |
| 2025 | 12 | 05 | 06 | 1556 | 603 | 2639 | 1692 | 2682 | 1948 | 2176 | 20 | 23 | 27 | 25 | 33 | 33 | 26 | 48 | 2264 | 15795 |
| 2025 | 12 | 05 | 05 | 1557 | 603 | 1450 | 1999 | 2410 | 2115 | 3151 | 23 | 27 | 28 | 30 | 25 | 30 | 40 | 42 | 2236 | 15766 |
| 2025 | 12 | 05 | 04 | 1555 | 603 | 2105 | 1909 | 2157 | 2234 | 2700 | 19 | 21 | 34 | 34 | 26 | 30 | 28 | 42 | 2231 | 15728 |
| 2025 | 12 | 05 | 03 | 1554 | 602 | 1804 | 2040 | 2394 | 2136 | 2717 | 30 | 17 | 30 | 39 | 21 | 23 | 31 | 52 | 2217 | 15707 |
| 2025 | 12 | 05 | 02 | 1552 | 599 | 2434 | 1881 | 2025 | 2248 | 2492 | 25 | 28 | 27 | 33 | 16 | 33 | 37 | 51 | 2191 | 15672 |
| 2025 | 12 | 05 | 01 | 1553 | 598 | 1271 | 1963 | 2454 | 2360 | 2994 | 27 | 23 | 26 | 33 | 22 | 39 | 32 | 40 | 2148 | 15583 |
| 2025 | 12 | 05 | 00 | 1558 | 604 | 2089 | 1796 | 2030 | 2068 | 3284 | 20 | 16 | 38 | 38 | 27 | 41 | 31 | 38 | 2357 | 16035 |
| 2025 | 12 | 04 | 23 | 1559 | 603 | 2234 | 1761 | 2258 | 2284 | 2722 | 24 | 22 | 33 | 31 | 29 | 42 | 35 | 40 | 2343 | 16020 |
| 2025 | 12 | 04 | 22 | 1555 | 604 | 2109 | 1537 | 2489 | 2245 | 2877 | 24 | 28 | 40 | 34 | 29 | 30 | 32 | 39 | 2337 | 16009 |
| 2025 | 12 | 04 | 21 | 1557 | 604 | 2337 | 1819 | 1913 | 2712 | 2469 | 24 | 30 | 30 | 27 | 28 | 38 | 34 | 32 | 2345 | 15999 |
| 2025 | 12 | 04 | 20 | 1557 | 604 | 2749 | 1672 | 2538 | 2304 | 1987 | 24 | 25 | 28 | 27 | 27 | 36 | 35 | 54 | 2312 | 15979 |
| 2025 | 12 | 04 | 19 | 1554 | 604 | 2447 | 1982 | 1895 | 3068 | 1855 | 13 | 26 | 29 | 41 | 21 | 34 | 29 | 48 | 2306 | 15952 |
| 2025 | 12 | 04 | 18 | 1551 | 603 | 1501 | 1904 | 1771 | 3386 | 2688 | 35 | 25 | 32 | 19 | 23 | 24 | 36 | 46 | 2298 | 15942 |
| 2025 | 12 | 04 | 17 | 1552 | 601 | 2567 | 1756 | 2002 | 2190 | 2726 | 19 | 32 | 30 | 27 | 35 | 27 | 26 | 40 | 2298 | 15928 |
| 2025 | 12 | 04 | 16 | 1554 | 603 | 2262 | 1660 | 2358 | 2109 | 2838 | 16 | 22 | 30 | 31 | 36 | 40 | 31 | 31 | 2292 | 15913 |
| 2025 | 12 | 04 | 15 | 1553 | 602 | 2629 | 2196 | 1753 | 2298 | 2347 | 28 | 20 | 31 | 27 | 29 | 37 | 24 | 40 | 2287 | 15901 |
| 2025 | 12 | 04 | 14 | 1555 | 603 | 2375 | 1886 | 2872 | 1559 | 2521 | 23 | 23 | 31 | 24 | 29 | 36 | 25 | 49 | 2274 | 15885 |
| 2025 | 12 | 04 | 13 | 1556 | 603 | 1733 | 1743 | 2662 | 2541 | 2518 | 26 | 30 | 26 | 25 | 31 | 32 | 32 | 42 | 2266 | 15866 |
| 2025 | 12 | 04 | 12 | 1556 | 603 | 1748 | 2027 | 2291 | 2474 | 2654 | 24 | 31 | 28 | 26 | 21 | 31 | 36 | 46 | 2259 | 15855 |
| 2025 | 12 | 04 | 11 | 1552 | 603 | 2423 | 2085 | 2048 | 2058 | 2576 | 26 | 22 | 34 | 31 | 28 | 39 | 29 | 40 | 2245 | 15839 |
| 2025 | 12 | 04 | 10 | 1553 | 602 | 2322 | 1641 | 2438 | 2570 | 2219 | 20 | 28 | 27 | 27 | 24 | 32 | 35 | 47 | 2244 | 15829 |