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 | 03 | 17 | 04 | 1495 | 546 | 2327 | 1772 | 2446 | 2157 | 2702 | 24 | 29 | 33 | 29 | 25 | 29 | 36 | 44 | 2129 | 15823 |
| 2025 | 03 | 17 | 03 | 1494 | 546 | 2385 | 1958 | 2682 | 2479 | 1891 | 37 | 29 | 30 | 30 | 24 | 28 | 33 | 41 | 2117 | 15804 |
| 2025 | 03 | 17 | 02 | 1491 | 545 | 2698 | 1873 | 1568 | 2701 | 2540 | 20 | 29 | 36 | 35 | 32 | 25 | 31 | 48 | 2101 | 15773 |
| 2025 | 03 | 17 | 01 | 1492 | 545 | 2080 | 1872 | 2008 | 2596 | 2784 | 16 | 33 | 34 | 24 | 26 | 32 | 33 | 45 | 2086 | 15706 |
| 2025 | 03 | 17 | 00 | 1496 | 547 | 2359 | 1881 | 2426 | 2187 | 2717 | 25 | 38 | 33 | 36 | 17 | 33 | 33 | 45 | 2280 | 16153 |
| 2025 | 03 | 16 | 23 | 1498 | 547 | 2582 | 1807 | 2224 | 2639 | 2307 | 35 | 27 | 33 | 33 | 31 | 24 | 33 | 45 | 2272 | 16137 |
| 2025 | 03 | 16 | 22 | 1499 | 546 | 2542 | 2038 | 2030 | 1969 | 2973 | 19 | 36 | 29 | 35 | 23 | 30 | 43 | 40 | 2277 | 16129 |
| 2025 | 03 | 16 | 21 | 1498 | 547 | 2045 | 2139 | 2023 | 2843 | 2498 | 26 | 40 | 34 | 29 | 22 | 32 | 30 | 44 | 2266 | 16116 |
| 2025 | 03 | 16 | 20 | 1496 | 547 | 2099 | 1798 | 2207 | 2222 | 3209 | 19 | 35 | 32 | 25 | 24 | 36 | 37 | 44 | 2273 | 16103 |
| 2025 | 03 | 16 | 19 | 1496 | 546 | 2048 | 2071 | 2921 | 2159 | 2331 | 27 | 34 | 34 | 33 | 20 | 35 | 37 | 41 | 2260 | 16093 |
| 2025 | 03 | 16 | 18 | 1494 | 547 | 2590 | 1995 | 2115 | 2787 | 2036 | 21 | 28 | 39 | 31 | 26 | 32 | 36 | 42 | 2266 | 16085 |
| 2025 | 03 | 16 | 17 | 1491 | 547 | 2351 | 1822 | 2378 | 2654 | 2304 | 20 | 27 | 30 | 35 | 32 | 37 | 38 | 45 | 2243 | 16054 |
| 2025 | 03 | 16 | 16 | 1494 | 547 | 2190 | 1974 | 2671 | 2435 | 2234 | 15 | 30 | 33 | 30 | 33 | 41 | 26 | 43 | 2241 | 16037 |
| 2025 | 03 | 16 | 15 | 1493 | 546 | 1922 | 2042 | 2222 | 2530 | 2776 | 26 | 29 | 39 | 29 | 24 | 28 | 35 | 42 | 2237 | 16020 |
| 2025 | 03 | 16 | 14 | 1493 | 547 | 2520 | 2075 | 2323 | 2048 | 2516 | 19 | 31 | 36 | 40 | 20 | 39 | 33 | 36 | 2233 | 16009 |
| 2025 | 03 | 16 | 13 | 1488 | 547 | 2748 | 1750 | 2085 | 2315 | 2576 | 23 | 28 | 37 | 29 | 26 | 30 | 28 | 53 | 2230 | 15993 |
| 2025 | 03 | 16 | 12 | 1488 | 546 | 2144 | 1754 | 2265 | 2112 | 3193 | 13 | 23 | 31 | 33 | 34 | 38 | 33 | 49 | 2217 | 15973 |
| 2025 | 03 | 16 | 11 | 1487 | 546 | 2059 | 2234 | 2155 | 2392 | 2619 | 21 | 27 | 37 | 35 | 24 | 33 | 37 | 46 | 2199 | 15951 |
| 2025 | 03 | 16 | 10 | 1489 | 546 | 2442 | 1597 | 1841 | 2740 | 2830 | 24 | 27 | 39 | 26 | 24 | 34 | 37 | 38 | 2205 | 15939 |
| 2025 | 03 | 16 | 09 | 1489 | 546 | 2223 | 2040 | 2211 | 2005 | 2965 | 21 | 39 | 32 | 29 | 22 | 27 | 42 | 47 | 2179 | 15917 |
| 2025 | 03 | 16 | 08 | 1490 | 545 | 2138 | 2142 | 2513 | 2017 | 2616 | 27 | 28 | 33 | 32 | 23 | 27 | 37 | 37 | 2184 | 15889 |
| 2025 | 03 | 16 | 07 | 1488 | 546 | 2773 | 1689 | 1946 | 2165 | 2851 | 25 | 32 | 28 | 24 | 22 | 33 | 37 | 53 | 2163 | 15875 |
| 2025 | 03 | 16 | 06 | 1486 | 546 | 2283 | 2169 | 2012 | 2448 | 2500 | 27 | 36 | 32 | 28 | 22 | 29 | 40 | 45 | 2149 | 15852 |
| 2025 | 03 | 16 | 05 | 1487 | 545 | 2531 | 1703 | 1926 | 2961 | 2284 | 13 | 25 | 28 | 38 | 37 | 31 | 31 | 40 | 2155 | 15835 |
| 2025 | 03 | 16 | 04 | 1487 | 545 | 2037 | 2024 | 2775 | 2313 | 2248 | 32 | 29 | 32 | 30 | 22 | 37 | 24 | 43 | 2136 | 15814 |
| 2025 | 03 | 16 | 03 | 1487 | 544 | 1909 | 1785 | 1672 | 2547 | 3472 | 20 | 31 | 36 | 30 | 19 | 32 | 42 | 41 | 2127 | 15794 |
| 2025 | 03 | 16 | 02 | 1487 | 543 | 2356 | 1901 | 1759 | 2771 | 2580 | 22 | 24 | 33 | 25 | 39 | 21 | 37 | 42 | 2122 | 15762 |
| 2025 | 03 | 16 | 01 | 1488 | 541 | 2194 | 1771 | 2672 | 2918 | 1779 | 22 | 32 | 31 | 36 | 27 | 31 | 38 | 42 | 2067 | 15689 |
| 2025 | 03 | 16 | 00 | 1497 | 545 | 2390 | 2256 | 2270 | 1766 | 2891 | 29 | 30 | 35 | 22 | 33 | 28 | 35 | 46 | 2257 | 16130 |
| 2025 | 03 | 15 | 23 | 1496 | 545 | 1943 | 2042 | 2539 | 2213 | 2821 | 29 | 33 | 39 | 27 | 15 | 23 | 45 | 36 | 2262 | 16108 |
| 2025 | 03 | 15 | 22 | 1498 | 544 | 1501 | 2021 | 2184 | 3174 | 2677 | 23 | 29 | 32 | 32 | 31 | 29 | 33 | 46 | 2249 | 16103 |
| 2025 | 03 | 15 | 21 | 1495 | 544 | 1879 | 2270 | 2273 | 2454 | 2670 | 22 | 25 | 27 | 37 | 26 | 26 | 43 | 43 | 2253 | 16087 |
| 2025 | 03 | 15 | 20 | 1497 | 544 | 2590 | 1858 | 2304 | 1956 | 2830 | 23 | 24 | 33 | 31 | 24 | 39 | 45 | 36 | 2249 | 16083 |
| 2025 | 03 | 15 | 19 | 1498 | 543 | 2161 | 1853 | 3011 | 2138 | 2372 | 22 | 29 | 31 | 33 | 32 | 29 | 31 | 43 | 2249 | 16075 |
| 2025 | 03 | 15 | 18 | 1495 | 544 | 2759 | 1922 | 2468 | 2225 | 2155 | 29 | 17 | 35 | 31 | 28 | 30 | 41 | 39 | 2248 | 16066 |
| 2025 | 03 | 15 | 17 | 1493 | 544 | 2907 | 1727 | 2108 | 2268 | 2509 | 25 | 33 | 35 | 31 | 21 | 39 | 38 | 42 | 2230 | 16050 |
| 2025 | 03 | 15 | 16 | 1495 | 544 | 2217 | 1770 | 1785 | 3423 | 2313 | 26 | 22 | 35 | 46 | 29 | 25 | 33 | 43 | 2236 | 16042 |
| 2025 | 03 | 15 | 15 | 1495 | 543 | 2392 | 1908 | 2065 | 2215 | 2927 | 24 | 26 | 36 | 38 | 21 | 37 | 39 | 36 | 2232 | 16034 |
| 2025 | 03 | 15 | 14 | 1496 | 544 | 2267 | 1645 | 2315 | 2586 | 2678 | 29 | 27 | 29 | 31 | 21 | 31 | 44 | 44 | 2227 | 16014 |
| 2025 | 03 | 15 | 13 | 1495 | 544 | 2193 | 1845 | 2547 | 2216 | 2680 | 36 | 21 | 37 | 34 | 15 | 30 | 41 | 39 | 2219 | 15992 |
| 2025 | 03 | 15 | 12 | 1496 | 543 | 2139 | 1621 | 2114 | 2136 | 3453 | 21 | 34 | 33 | 30 | 27 | 33 | 38 | 37 | 2213 | 15968 |
| 2025 | 03 | 15 | 11 | 1496 | 544 | 2132 | 1963 | 1936 | 2377 | 3043 | 32 | 28 | 26 | 38 | 25 | 23 | 37 | 41 | 2206 | 15947 |
| 2025 | 03 | 15 | 10 | 1494 | 544 | 1988 | 2035 | 2302 | 1985 | 3134 | 28 | 24 | 30 | 38 | 31 | 29 | 37 | 39 | 2196 | 15934 |
| 2025 | 03 | 15 | 09 | 1491 | 544 | 2851 | 1990 | 1894 | 2164 | 2543 | 31 | 23 | 32 | 37 | 18 | 36 | 38 | 40 | 2182 | 15914 |
| 2025 | 03 | 15 | 08 | 1496 | 543 | 2464 | 2078 | 2007 | 2031 | 2842 | 25 | 30 | 51 | 38 | 19 | 24 | 24 | 43 | 2180 | 15895 |
| 2025 | 03 | 15 | 07 | 1495 | 543 | 2074 | 1799 | 2517 | 2449 | 2580 | 26 | 27 | 32 | 33 | 21 | 35 | 31 | 45 | 2165 | 15872 |
| 2025 | 03 | 15 | 06 | 1496 | 543 | 1784 | 1822 | 2107 | 2662 | 3038 | 25 | 26 | 39 | 35 | 20 | 24 | 38 | 45 | 2145 | 15849 |
| 2025 | 03 | 15 | 05 | 1495 | 544 | 2433 | 1911 | 2026 | 2261 | 2763 | 24 | 30 | 24 | 40 | 30 | 36 | 32 | 40 | 2138 | 15827 |